text_prompt stringlengths 157 13.1k | code_prompt stringlengths 7 19.8k ⌀ |
|---|---|
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def gaussfill(dem, size=3, newmask=None):
"""Gaussian filter with filling """ |
smooth = gauss_fltr_astropy(dem, size=size)
smooth[~dem.mask] = dem[~dem.mask]
if newmask is not None:
smooth = np.ma.array(smooth, mask=newmask)
return smooth |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def median_fltr(dem, fsize=7, origmask=False):
"""Scipy.ndimage median filter Does not properly handle NaN """ |
print("Applying median filter with size %s" % fsize)
from scipy.ndimage.filters import median_filter
dem_filt_med = median_filter(dem.filled(np.nan), fsize)
#Now mask all nans
out = np.ma.fix_invalid(dem_filt_med, copy=False, fill_value=dem.fill_value)
if origmask:
out = np.ma.array(out... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def median_fltr_opencv(dem, size=3, iterations=1):
"""OpenCV median filter """ |
import cv2
dem = malib.checkma(dem)
if size > 5:
print("Need to implement iteration")
n = 0
out = dem
while n <= iterations:
dem_cv = cv2.medianBlur(out.astype(np.float32).filled(np.nan), size)
out = np.ma.fix_invalid(dem_cv)
out.set_fill_value(dem.fill_value)
... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def circular_mask(size):
"""Create a circular mask for an array Useful when sampling rasters for a laser shot """ |
r = size/2
c = (r,r)
y,x = np.ogrid[-c[0]:size-c[0], -c[1]:size-c[1]]
mask = ~(x*x + y*y <= r*r)
return mask |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def median_fltr_skimage(dem, radius=3, erode=1, origmask=False):
""" Older skimage.filter.median_filter This smooths, removes noise and fills in nodata areas wit... |
#Note, ndimage doesn't properly handle ma - convert to nan
dem = malib.checkma(dem)
dem = dem.astype(np.float64)
#Mask islands
if erode > 0:
print("Eroding islands smaller than %s pixels" % (erode * 2))
dem = malib.mask_islands(dem, iterations=erode)
print("Applying median filt... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def dz_fltr(dem_fn, refdem_fn, perc=None, rangelim=(0,30), smooth=False):
"""Absolute elevation difference range filter using values from a source raster file an... |
try:
open(refdem_fn)
except IOError:
sys.exit('Unable to open reference DEM: %s' % refdem_fn)
from pygeotools.lib import warplib
dem_ds, refdem_ds = warplib.memwarp_multi_fn([dem_fn, refdem_fn], res='first', extent='first', t_srs='first')
dem = iolib.ds_getma(dem_ds)
refdem = i... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def dz_fltr_ma(dem, refdem, perc=None, rangelim=(0,30), smooth=False):
"""Absolute elevation difference range filter using values from a source array and a refer... |
if smooth:
refdem = gauss_fltr_astropy(refdem)
dem = gauss_fltr_astropy(dem)
dz = refdem - dem
#This is True for invalid values in DEM, and should be masked
demmask = np.ma.getmaskarray(dem)
if perc:
dz_perc = malib.calcperc(dz, perc)
print("Applying dz percentile... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def erode_edge(dem, iterations=1):
"""Erode pixels near nodata """ |
import scipy.ndimage as ndimage
print('Eroding pixels near nodata: %i iterations' % iterations)
mask = np.ma.getmaskarray(dem)
mask_dilate = ndimage.morphology.binary_dilation(mask, iterations=iterations)
out = np.ma.array(dem, mask=mask_dilate)
return out |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def butter(dt_list, val, lowpass=1.0):
"""This is framework for a butterworth bandpass for 1D data Needs to be cleaned up and generalized """ |
import scipy.signal
import matplotlib.pyplot as plt
#dt is 300 s, 5 min
dt_diff = np.diff(dt_list)
dt_diff = np.array([dt.total_seconds() for dt in dt_diff])
dt = malib.fast_median(dt_diff)
#f is 0.00333 Hz
#288 samples/day
fs = 1./dt
nyq = fs/2.
if False:
#psd, f =... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def freq_filt(bma):
""" This is a framework for 2D FFT filtering. It has not be tested or finished - might be a dead end See separate utility freq_analysis.py ""... |
"""
Want to fit linear function to artifact line in freq space,
Then mask everything near that line at distances of ~5-200 pixels,
Or whatever the maximum CCD artifact dimension happens to be,
This will depend on scaling - consult CCD map for interval
"""
#Fill ndv with random data
b... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def stack_smooth(s_orig, size=7, save=False):
"""Run Gaussian smoothing filter on exising stack object """ |
from copy import deepcopy
from pygeotools.lib import filtlib
print("Copying original DEMStack")
s = deepcopy(s_orig)
s.stack_fn = os.path.splitext(s_orig.stack_fn)[0]+'_smooth%ipx.npz' % size
#Loop through each array and smooth
print("Smoothing all arrays in stack with %i px gaussian filte... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def stack_clip(s_orig, extent, out_stack_fn=None, copy=True, save=False):
"""Create a new stack object with limited extent from an exising stack object """ |
#Should check for valid extent
#This is not memory efficient, but is much simpler
#To be safe, if we are saving out, create a copy to avoid overwriting
if copy or save:
from copy import deepcopy
print("Copying original DEMStack")
s = deepcopy(s_orig)
else:
#Want to ... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_stack_subset(s_orig, idx, out_stack_fn=None, copy=True, save=False):
"""Create a new stack object as a subset of an exising stack object """ |
#This must be a numpy boolean array
idx = np.array(idx)
if np.any(idx):
#This is not memory efficient, but is much simpler
#To be safe, if we are saving out, create a copy to avoid overwriting
if copy or save:
from copy import deepcopy
print("Copying original... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def stack_merge(s1, s2, out_stack_fn=None, sort=True, save=False):
"""Merge two stack objects """ |
from pygeotools.lib import geolib
from copy import deepcopy
#Assumes input stacks have identical extent, resolution, and projection
if s1.ma_stack.shape[1:3] != s2.ma_stack.shape[1:3]:
print(s1.ma_stack.shape)
print(s2.ma_stack.shape)
sys.exit('Input stacks must have identical a... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def randomfill(a):
"""Fill masked areas with random noise This is needed for any fft-based operations """ |
a = checkma(a)
#For data that have already been normalized,
#This provides a proper normal distribution with mean=0 and std=1
#a = (a - a.mean()) / a.std()
#noise = a.mask * (np.random.randn(*a.shape))
noise = a.mask * np.random.normal(a.mean(), a.std(), a.shape)
#Add the noise
b = a.fi... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def nanfill(a, f_a, *args, **kwargs):
"""Fill masked areas with np.nan Wrapper for functions that can't handle ma (e.g. scipy.ndimage) This will force filters to... |
a = checkma(a)
ndv = a.fill_value
#Note: The following fails for arrays that are not float (np.nan is float)
b = f_a(a.filled(np.nan), *args, **kwargs)
#the fix_invalid fill_value parameter doesn't seem to work
out = np.ma.fix_invalid(b, copy=False)
out.set_fill_value(ndv)
return out |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def fast_median(a):
"""Fast median operation for masked array using 50th-percentile """ |
a = checkma(a)
#return scoreatpercentile(a.compressed(), 50)
if a.count() > 0:
out = np.percentile(a.compressed(), 50)
else:
out = np.ma.masked
return out |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def mad(a, axis=None, c=1.4826, return_med=False):
"""Compute normalized median absolute difference Can also return median array, as this can be expensive, and o... |
a = checkma(a)
#return np.ma.median(np.fabs(a - np.ma.median(a))) / c
if a.count() > 0:
if axis is None:
med = fast_median(a)
out = fast_median(np.fabs(a - med)) * c
else:
med = np.ma.median(a, axis=axis)
#This is necessary for broadcasting
... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def calcperc(b, perc=(0.1,99.9)):
"""Calculate values at specified percentiles """ |
b = checkma(b)
if b.count() > 0:
#low = scoreatpercentile(b.compressed(), perc[0])
#high = scoreatpercentile(b.compressed(), perc[1])
low = np.percentile(b.compressed(), perc[0])
high = np.percentile(b.compressed(), perc[1])
else:
low = 0
high = 0
#low =... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def calcperc_sym(b, perc=(0.1,99.9)):
""" Get symmetrical percentile values Useful for determining clim centered on 0 for difference maps """ |
clim = np.max(np.abs(calcperc(b, perc)))
#clim = (-clim, clim)
return -clim, clim |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def iqr(b, perc=(25, 75)):
"""Inter-quartile range """ |
b = checkma(b)
low, high = calcperc(b, perc)
return low, high, high - low |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def iv(b, **kwargs):
"""Quick access to imview for interactive sessions """ |
import matplotlib.pyplot as plt
import imview.imviewer as imview
b = checkma(b)
#if hasattr(kwargs,'imshow_kwargs'):
# kwargs['imshow_kwargs']['interpolation'] = 'bicubic'
#else:
# kwargs['imshow_kwargs'] = {'interpolation': 'bicubic'}
#bma_fig(fig, bma, cmap='gist_rainbow_r', cl... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
| def norm_shape(shape):
'''
Normalize numpy array shapes so they're always expressed as a tuple,
even for one-dimensional shapes.
Parameters
shape - an int, or a tuple of ints
Returns
a shape tuple
'''
try:
i = int(shape)
return (i,)
except Type... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def localortho(lon, lat):
"""Create srs for local orthographic projection centered at lat, lon """ |
local_srs = osr.SpatialReference()
local_proj = '+proj=ortho +lat_0=%0.7f +lon_0=%0.7f +datum=WGS84 +units=m +no_defs ' % (lat, lon)
local_srs.ImportFromProj4(local_proj)
return local_srs |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def geom2localortho(geom):
"""Convert existing geom to local orthographic projection Useful for local cartesian distance/area calculations """ |
cx, cy = geom.Centroid().GetPoint_2D()
lon, lat, z = cT_helper(cx, cy, 0, geom.GetSpatialReference(), wgs_srs)
local_srs = localortho(lon,lat)
local_geom = geom_dup(geom)
geom_transform(local_geom, local_srs)
return local_geom |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def dd2dms(dd):
"""Convert decimal degrees to degrees, minutes, seconds """ |
n = dd < 0
dd = abs(dd)
m,s = divmod(dd*3600,60)
d,m = divmod(m,60)
if n:
d = -d
return d,m,s |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def dms2dd(d,m,s):
"""Convert degrees, minutes, seconds to decimal degrees """ |
if d < 0:
sign = -1
else:
sign = 1
dd = sign * (int(abs(d)) + float(m) / 60 + float(s) / 3600)
return dd |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def dd2dm(dd):
"""Convert decimal to degrees, decimal minutes """ |
d,m,s = dd2dms(dd)
m = m + float(s)/3600
return d,m,s |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def mapToPixel(mX, mY, geoTransform):
"""Convert map coordinates to pixel coordinates based on geotransform Accepts float or NumPy arrays GDAL model used here - ... |
mX = np.asarray(mX)
mY = np.asarray(mY)
if geoTransform[2] + geoTransform[4] == 0:
pX = ((mX - geoTransform[0]) / geoTransform[1]) - 0.5
pY = ((mY - geoTransform[3]) / geoTransform[5]) - 0.5
else:
pX, pY = applyGeoTransform(mX, mY, invertGeoTransform(geoTransform))
#return i... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def pixelToMap(pX, pY, geoTransform):
"""Convert pixel coordinates to map coordinates based on geotransform Accepts float or NumPy arrays GDAL model used here - ... |
pX = np.asarray(pX, dtype=float)
pY = np.asarray(pY, dtype=float)
pX += 0.5
pY += 0.5
mX, mY = applyGeoTransform(pX, pY, geoTransform)
return mX, mY |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def mem_ds(res, extent, srs=None, dtype=gdal.GDT_Float32):
"""Create a new GDAL Dataset in memory Useful for various applications that require a Dataset """ |
#These round down to int
#dst_ns = int((extent[2] - extent[0])/res)
#dst_nl = int((extent[3] - extent[1])/res)
#This should pad by 1 pixel, but not if extent and res were calculated together to give whole int
dst_ns = int((extent[2] - extent[0])/res + 0.99)
dst_nl = int((extent[3] - extent[1])/... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def copyproj(src_fn, dst_fn, gt=True):
"""Copy projection and geotransform from one raster file to another """ |
src_ds = gdal.Open(src_fn, gdal.GA_ReadOnly)
dst_ds = gdal.Open(dst_fn, gdal.GA_Update)
dst_ds.SetProjection(src_ds.GetProjection())
if gt:
src_gt = np.array(src_ds.GetGeoTransform())
src_dim = np.array([src_ds.RasterXSize, src_ds.RasterYSize])
dst_dim = np.array([dst_ds.RasterX... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def geom_transform(geom, t_srs):
"""Transform a geometry in place """ |
s_srs = geom.GetSpatialReference()
if not s_srs.IsSame(t_srs):
ct = osr.CoordinateTransformation(s_srs, t_srs)
geom.Transform(ct)
geom.AssignSpatialReference(t_srs) |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def shp_dict(shp_fn, fields=None, geom=True):
"""Get a dictionary for all features in a shapefile Optionally, specify fields """ |
from pygeotools.lib import timelib
ds = ogr.Open(shp_fn)
lyr = ds.GetLayer()
nfeat = lyr.GetFeatureCount()
print('%i input features\n' % nfeat)
if fields is None:
fields = shp_fieldnames(lyr)
d_list = []
for n,feat in enumerate(lyr):
d = {}
if geom:
g... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def lyr_proj(lyr, t_srs, preserve_fields=True):
"""Reproject an OGR layer """ |
#Need to check t_srs
s_srs = lyr.GetSpatialRef()
cT = osr.CoordinateTransformation(s_srs, t_srs)
#Do everything in memory
drv = ogr.GetDriverByName('Memory')
#Might want to save clipped, warped shp to disk?
# create the output layer
#drv = ogr.GetDriverByName('ESRI Shapefile')
#ou... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def raster_shpclip(r_fn, shp_fn, extent='raster', bbox=False, pad=None, invert=False, verbose=False):
"""Clip an input raster by input polygon shapefile for give... |
from pygeotools.lib import iolib
from pygeotools.lib import warplib
r_ds = iolib.fn_getds(r_fn)
r_srs = get_ds_srs(r_ds)
r_extent = ds_extent(r_ds)
r_extent_geom = bbox2geom(r_extent)
#NOTE: want to add spatial filter here to avoid reprojeting global RGI polygons, for example
shp... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def geom2shp(geom, out_fn, fields=False):
"""Write out a new shapefile for input geometry """ |
from pygeotools.lib import timelib
driverName = "ESRI Shapefile"
drv = ogr.GetDriverByName(driverName)
if os.path.exists(out_fn):
drv.DeleteDataSource(out_fn)
out_ds = drv.CreateDataSource(out_fn)
out_lyrname = os.path.splitext(os.path.split(out_fn)[1])[0]
geom_srs = geom.GetSpatial... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_outline(ds, t_srs=None, scale=1.0, simplify=False, convex=False):
"""Generate outline of unmasked values in input raster get_outline is an attempt to rep... |
gt = np.array(ds.GetGeoTransform())
from pygeotools.lib import iolib
a = iolib.ds_getma_sub(ds, scale=scale)
#Create empty geometry
geom = ogr.Geometry(ogr.wkbPolygon)
#Check to make sure we have unmasked data
if a.count() != 0:
#Scale the gt for reduced resolution
#The UL c... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def ds_cT(ds, x, y, xy_srs=wgs_srs):
"""Convert input point coordinates to map coordinates that match input dataset """ |
#Convert lat/lon to projected srs
ds_srs = get_ds_srs(ds)
#If xy_srs is undefined, assume it is the same as ds_srs
mX = x
mY = y
if xy_srs is not None:
if not ds_srs.IsSame(xy_srs):
mX, mY, mZ = cT_helper(x, y, 0, xy_srs, ds_srs)
return mX, mY |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def line2pts(geom, dl=None):
"""Given an input line geom, generate points at fixed interval Useful for extracting profile data from raster """ |
#Extract list of (x,y) tuples at nodes
nodes = geom.GetPoints()
#print "%i nodes" % len(nodes)
#Point spacing in map units
if dl is None:
nsteps=1000
dl = geom.Length()/nsteps
#This only works for equidistant projection!
#l = np.arange(0, geom.Length(), dl)
#Initia... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_res_stats(ds_list, t_srs=None):
"""Return resolution stats for an input dataset list """ |
if t_srs is None:
t_srs = get_ds_srs(ds_list[0])
res = np.array([get_res(ds, t_srs=t_srs) for ds in ds_list])
#Check that all projections are identical
#gt_array = np.array([ds.GetGeoTransform() for ds in args])
#xres = gt_array[:,1]
#yres = -gt_array[:,5]
#if xres == yres:
#re... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_res(ds, t_srs=None, square=False):
"""Get GDAL Dataset raster resolution """ |
gt = ds.GetGeoTransform()
ds_srs = get_ds_srs(ds)
#This is Xres, Yres
res = [gt[1], np.abs(gt[5])]
if square:
res = [np.mean(res), np.mean(res)]
if t_srs is not None and not ds_srs.IsSame(t_srs):
if True:
#This diagonal approach is similar to the approach in gdaltran... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_center(ds, t_srs=None):
"""Get center coordinates of GDAL Dataset """ |
gt = ds.GetGeoTransform()
ds_srs = get_ds_srs(ds)
#Note: this is center of center pixel, not ul corner of center pixel
center = [gt[0] + (gt[1] * ds.RasterXSize/2.0), gt[3] + (gt[5] * ds.RasterYSize/2.0)]
#include t_srs.Validate() and t_srs.Fixup()
if t_srs is not None and not ds_srs.IsSame(t_s... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_ds_srs(ds):
"""Get srs object for GDAL Datset """ |
ds_srs = osr.SpatialReference()
ds_srs.ImportFromWkt(ds.GetProjectionRef())
return ds_srs |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def srs_check(ds):
"""Check validitiy of Dataset srs Return True if srs is properly defined """ |
# ds_srs = get_ds_srs(ds)
gt = np.array(ds.GetGeoTransform())
gt_check = ~np.all(gt == np.array((0.0, 1.0, 0.0, 0.0, 0.0, 1.0)))
proj_check = (ds.GetProjection() != '')
#proj_check = ds_srs.IsProjected()
out = False
if gt_check and proj_check:
out = True
return out |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def ds_IsEmpty(ds):
"""Check to see if dataset is empty after warp """ |
out = False
b = ds.GetRasterBand(1)
#Looks like this throws:
#ERROR 1: Failed to compute min/max, no valid pixels found in sampling.
#Should just catch this rater than bothering with logic below
try:
mm = b.ComputeRasterMinMax()
if (mm[0] == mm[1]):
ndv = b.GetNoDa... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def gt_corners(gt, nx, ny):
"""Get corner coordinates based on input geotransform and raster dimensions """ |
ul = [gt[0], gt[3]]
ll = [gt[0], gt[3] + (gt[5] * ny)]
ur = [gt[0] + (gt[1] * nx), gt[3]]
lr = [gt[0] + (gt[1] * nx), gt[3] + (gt[5] * ny)]
return ul, ll, ur, lr |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def ds_geom(ds, t_srs=None):
"""Return dataset bbox envelope as geom """ |
gt = ds.GetGeoTransform()
ds_srs = get_ds_srs(ds)
if t_srs is None:
t_srs = ds_srs
ns = ds.RasterXSize
nl = ds.RasterYSize
x = np.array([0, ns, ns, 0, 0], dtype=float)
y = np.array([0, 0, nl, nl, 0], dtype=float)
#Note: pixelToMap adds 0.5 to input coords, need to account for th... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def geom_wh(geom):
"""Compute width and height of geometry in projected units """ |
e = geom.GetEnvelope()
h = e[1] - e[0]
w = e[3] - e[2]
return w, h |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def gdaldem_mem_ma(ma, ds=None, res=None, extent=None, srs=None, processing='hillshade', returnma=False, computeEdges=False):
""" Wrapper to allow gdaldem calcul... |
if ds is None:
ds = mem_ds(res, extent, srs=None, dtype=gdal.GDT_Float32)
else:
ds = mem_ds_copy(ds)
b = ds.GetRasterBand(1)
b.WriteArray(ma)
out = gdaldem_mem_ds(ds, processing=processing, returnma=returnma)
return out |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_xy_ma(bma, gt, stride=1, origmask=True, newmask=None):
"""Return arrays of x and y map coordinates for input array and geotransform """ |
pX = np.arange(0, bma.shape[1], stride)
pY = np.arange(0, bma.shape[0], stride)
psamp = np.meshgrid(pX, pY)
#if origmask:
# psamp = np.ma.array(psamp, mask=np.ma.getmaskarray(bma), fill_value=0)
mX, mY = pixelToMap(psamp[0], psamp[1], gt)
mask = None
if origmask:
mask = np.ma... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_xy_1D(ds, stride=1, getval=False):
"""Return 1D arrays of x and y map coordinates for input GDAL Dataset """ |
gt = ds.GetGeoTransform()
#stride = stride_m/gt[1]
pX = np.arange(0, ds.RasterXSize, stride)
pY = np.arange(0, ds.RasterYSize, stride)
mX, dummy = pixelToMap(pX, pY[0], gt)
dummy, mY = pixelToMap(pX[0], pY, gt)
return mX, mY |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_xy_grids(ds, stride=1, getval=False):
"""Return 2D arrays of x and y map coordinates for input GDAL Dataset """ |
gt = ds.GetGeoTransform()
#stride = stride_m/gt[1]
pX = np.arange(0, ds.RasterXSize, stride)
pY = np.arange(0, ds.RasterYSize, stride)
psamp = np.meshgrid(pX, pY)
mX, mY = pixelToMap(psamp[0], psamp[1], gt)
return mX, mY |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def fitPlaneSVD(XYZ):
"""Fit a plane to input point data using SVD """ |
[rows,cols] = XYZ.shape
# Set up constraint equations of the form AB = 0,
# where B is a column vector of the plane coefficients
# in the form b(1)*X + b(2)*Y +b(3)*Z + b(4) = 0.
p = (np.ones((rows,1)))
AB = np.hstack([XYZ,p])
[u, d, v] = np.linalg.svd(AB,0)
# Solution is last ... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def fitPlaneLSQ(XYZ):
"""Fit a plane to input point data using LSQ """ |
[rows,cols] = XYZ.shape
G = np.ones((rows,3))
G[:,0] = XYZ[:,0] #X
G[:,1] = XYZ[:,1] #Y
Z = XYZ[:,2]
coeff,resid,rank,s = np.linalg.lstsq(G,Z,rcond=None)
return coeff |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def ds_fitplane(ds):
"""Fit a plane to values in GDAL Dataset """ |
from pygeotools.lib import iolib
bma = iolib.ds_getma(ds)
gt = ds.GetGeoTransform()
return ma_fitplane(bma, gt) |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def getUTMzone(geom):
"""Determine UTM Zone for input geometry """ |
#If geom has srs properly defined, can do this
#geom.TransformTo(wgs_srs)
#Get centroid lat/lon
lon, lat = geom.Centroid().GetPoint_2D()
#Make sure we're -180 to 180
lon180 = (lon+180) - np.floor((lon+180)/360)*360 - 180
zonenum = int(np.floor((lon180 + 180)/6) + 1)
#Determine N/S hemis... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_proj(geom, proj_list=None):
"""Determine best projection for input geometry """ |
out_srs = None
if proj_list is None:
proj_list = gen_proj_list()
#Go through user-defined projeciton list
for projbox in proj_list:
if projbox.geom.Intersects(geom):
out_srs = projbox.srs
break
#If geom doesn't fall in any of the user projection bbox, use UTM... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def gen_proj_list():
"""Create list of projections with cascading preference """ |
#Eventually, just read this in from a text file
proj_list = []
#Alaska
#Note, this spans -180/180
proj_list.append(ProjBox([-180, -130, 51.35, 71.35], 3338))
#proj_list.append(ProjBox([-130, 172.4, 51.35, 71.35], 3338))
#Transantarctic Mountains
proj_list.append(ProjBox([150, 175, -80, ... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def xy2geom(x, y, t_srs=None):
"""Convert x and y point coordinates to geom """ |
geom_wkt = 'POINT({0} {1})'.format(x, y)
geom = ogr.CreateGeometryFromWkt(geom_wkt)
if t_srs is not None and not wgs_srs.IsSame(t_srs):
ct = osr.CoordinateTransformation(t_srs, wgs_srs)
geom.Transform(ct)
geom.AssignSpatialReference(t_srs)
return geom |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_dem_mosaic_cmd(fn_list, o, fn_list_txt=None, tr=None, t_srs=None, t_projwin=None, georef_tile_size=None, threads=None, tile=None, stat=None):
""" Create ... |
cmd = ['dem_mosaic',]
if o is None:
o = 'mos'
cmd.extend(['-o', o])
if threads is None:
from pygeotools.lib import iolib
threads = iolib.cpu_count()
cmd.extend(['--threads', threads])
if tr is not None:
cmd.extend(['--tr', tr])
if t_srs is not None:
#... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def parse_rs_alg(r):
"""Parse resampling algorithm """ |
#Note:GRA_CubicSpline created huge block artifacts for the St. Helen's compute_dh WV cases
#Stick with CubicSpline for both upsampling/downsampling for now
if r == 'near':
#Note: Nearest respects nodata when downsampling
gra = gdal.GRA_NearestNeighbour
elif r == 'bilinear':
gra ... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def parse_srs(t_srs, src_ds_list=None):
"""Parse arbitrary input t_srs Parameters t_srs : str or gdal.Dataset or filename Arbitrary input t_srs src_ds_list : lis... |
if t_srs is None and src_ds_list is None:
print("Input t_srs and src_ds_list are both None")
else:
if t_srs is None:
t_srs = 'first'
if t_srs == 'first' and src_ds_list is not None:
t_srs = geolib.get_ds_srs(src_ds_list[0])
elif t_srs == 'last' and src_ds... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def parse_res(res, src_ds_list=None, t_srs=None):
"""Parse arbitrary input res Parameters res : str or gdal.Dataset or filename or float Arbitrary input res src_... |
#Default to using first t_srs for res calculations
#Assumes src_ds_list is not None
t_srs = parse_srs(t_srs, src_ds_list)
#Valid options for res
res_str_list = ['first', 'last', 'min', 'max', 'mean', 'med', 'common_scale_factor']
#Compute output resolution in t_srs
if res in res_str_list ... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def parse_extent(extent, src_ds_list=None, t_srs=None):
"""Parse arbitrary input extent Parameters extent : str or gdal.Dataset or filename or list of float Arbi... |
#Default to using first t_srs for extent calculations
if t_srs is not None:
t_srs = parse_srs(t_srs, src_ds_list)
#Valid strings
extent_str_list = ['first', 'last', 'intersection', 'union']
if extent in extent_str_list and src_ds_list is not None:
if len(src_ds_list) == 1 and (ex... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def memwarp_multi(src_ds_list, res='first', extent='intersection', t_srs='first', r='cubic', verbose=True, dst_ndv=0):
"""Helper function for memwarp of multiple... |
return warp_multi(src_ds_list, res, extent, t_srs, r, warptype=memwarp, verbose=verbose, dst_ndv=dst_ndv) |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def memwarp_multi_fn(src_fn_list, res='first', extent='intersection', t_srs='first', r='cubic', verbose=True, dst_ndv=0):
"""Helper function for memwarp of multi... |
#Should implement proper error handling here
if not iolib.fn_list_check(src_fn_list):
sys.exit('Missing input file(s)')
src_ds_list = [gdal.Open(fn, gdal.GA_ReadOnly) for fn in src_fn_list]
return memwarp_multi(src_ds_list, res, extent, t_srs, r, verbose=verbose, dst_ndv=dst_ndv) |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def diskwarp_multi(src_ds_list, res='first', extent='intersection', t_srs='first', r='cubic', verbose=True, outdir=None, dst_ndv=None):
"""Helper function for di... |
return warp_multi(src_ds_list, res, extent, t_srs, r, verbose=verbose, warptype=diskwarp, outdir=outdir, dst_ndv=dst_ndv) |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def diskwarp_multi_fn(src_fn_list, res='first', extent='intersection', t_srs='first', r='cubic', verbose=True, outdir=None, dst_ndv=None):
"""Helper function for... |
#Should implement proper error handling here
if not iolib.fn_list_check(src_fn_list):
sys.exit('Missing input file(s)')
src_ds_list = [gdal.Open(fn, gdal.GA_ReadOnly) for fn in src_fn_list]
return diskwarp_multi(src_ds_list, res, extent, t_srs, r, verbose=verbose, outdir=outdir, dst_ndv=dst_ndv... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def writeout(ds, outfn):
"""Write ds to disk Note: Depreciated function - use diskwarp functions when writing to disk to avoid unnecessary CreateCopy """ |
print("Writing out %s" % outfn)
#Use outfn extension to get driver
#This may have issues if outfn already exists and the mem ds has different dimensions/res
out_ds = iolib.gtif_drv.CreateCopy(outfn, ds, 0, options=iolib.gdal_opt)
out_ds = None |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def getLocalTime(utc_dt, tz):
"""Return local timezone time """ |
import pytz
local_tz = pytz.timezone(tz)
local_dt = utc_dt.replace(tzinfo=pytz.utc).astimezone(local_tz)
return local_dt |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def strptime_fuzzy(s):
"""Fuzzy date string parsing Note: this returns current date if not found. If only year is provided, will return current month, day """ |
import dateutil.parser
dt = dateutil.parser.parse(str(s), fuzzy=True)
return dt |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def fn_getdatetime_list(fn):
"""Extract all datetime strings from input filename """ |
#Want to split last component
fn = os.path.split(os.path.splitext(fn)[0])[-1]
import re
#WV01_12JUN152223255-P1BS_R1C1-102001001B3B9800__WV01_12JUN152224050-P1BS_R1C1-102001001C555C00-DEM_4x.tif
#Need to parse above with month name
#Note: made this more restrictive to avoid false matches:
... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_t_factor(t1, t2):
"""Time difference between two datetimes, expressed as decimal year """ |
t_factor = None
if t1 is not None and t2 is not None and t1 != t2:
dt = t2 - t1
year = timedelta(days=365.25)
t_factor = abs(dt.total_seconds() / year.total_seconds())
return t_factor |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def sort_fn_list(fn_list):
"""Sort input filename list by datetime """ |
dt_list = get_dt_list(fn_list)
fn_list_sort = [fn for (dt,fn) in sorted(zip(dt_list,fn_list))]
return fn_list_sort |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def fix_repeat_dt(dt_list, offset_s=0.001):
"""Add some small offset to remove duplicate times Needed for xarray interp, which expects monotonically increasing t... |
idx = (np.diff(dt_list) == timedelta(0))
while np.any(idx):
dt_list[idx.nonzero()[0] + 1] += timedelta(seconds=offset_s)
idx = (np.diff(dt_list) == timedelta(0))
return dt_list |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_dt_list(fn_list):
"""Get list of datetime objects, extracted from a filename """ |
dt_list = np.array([fn_getdatetime(fn) for fn in fn_list])
return dt_list |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_closest_dt_idx(dt, dt_list):
"""Get indices of dt_list that is closest to input dt """ |
from pygeotools.lib import malib
dt_list = malib.checkma(dt_list, fix=False)
dt_diff = np.abs(dt - dt_list)
return dt_diff.argmin() |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def mean_date(dt_list):
"""Calcuate mean datetime from datetime list """ |
dt_list_sort = sorted(dt_list)
dt_list_sort_rel = [dt - dt_list_sort[0] for dt in dt_list_sort]
avg_timedelta = sum(dt_list_sort_rel, timedelta())/len(dt_list_sort_rel)
return dt_list_sort[0] + avg_timedelta |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def median_date(dt_list):
"""Calcuate median datetime from datetime list """ |
#dt_list_sort = sorted(dt_list)
idx = len(dt_list)/2
if len(dt_list) % 2 == 0:
md = mean_date([dt_list[idx-1], dt_list[idx]])
else:
md = dt_list[idx]
return md |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def dt_cluster(dt_list, dt_thresh=16.0):
"""Find clusters of similar datetimes within datetime list """ |
if not isinstance(dt_list[0], float):
o_list = dt2o(dt_list)
else:
o_list = dt_list
o_list_sort = np.sort(o_list)
o_list_sort_idx = np.argsort(o_list)
d = np.diff(o_list_sort)
#These are indices of breaks
#Add one so each b starts a cluster
b = np.nonzero(d > dt_thresh)[... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def dt2decyear(dt):
"""Convert datetime to decimal year """ |
year = dt.year
startOfThisYear = datetime(year=year, month=1, day=1)
startOfNextYear = datetime(year=year+1, month=1, day=1)
yearElapsed = sinceEpoch(dt) - sinceEpoch(startOfThisYear)
yearDuration = sinceEpoch(startOfNextYear) - sinceEpoch(startOfThisYear)
fraction = yearElapsed/yearDuration
... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def decyear2dt(t):
"""Convert decimal year to datetime """ |
year = int(t)
rem = t - year
base = datetime(year, 1, 1)
dt = base + timedelta(seconds=(base.replace(year=base.year+1) - base).total_seconds() * rem)
#This works for np array input
#year = t.astype(int)
#rem = t - year
#base = np.array([datetime(y, 1, 1) for y in year])
return dt |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def dt2jd(dt):
"""Convert datetime to julian date """ |
a = (14 - dt.month)//12
y = dt.year + 4800 - a
m = dt.month + 12*a - 3
return dt.day + ((153*m + 2)//5) + 365*y + y//4 - y//100 + y//400 - 32045 |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def jd2dt(jd):
"""Convert julian date to datetime """ |
n = int(round(float(jd)))
a = n + 32044
b = (4*a + 3)//146097
c = a - (146097*b)//4
d = (4*c + 3)//1461
e = c - (1461*d)//4
m = (5*e + 2)//153
day = e + 1 - (153*m + 2)//5
month = m + 3 - 12*(m//10)
year = 100*b + d - 4800 + m/10
tfrac = 0.5 + float(jd) - n
tfrac_s ... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def gps2dt(gps_week, gps_ms):
"""Convert GPS week and ms to a datetime """ |
gps_epoch = datetime(1980,1,6,0,0,0)
gps_week_s = timedelta(seconds=gps_week*7*24*60*60)
gps_ms_s = timedelta(milliseconds=gps_ms)
return gps_epoch + gps_week_s + gps_ms_s |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def disco_loop(opc, version, queue, real_out, dup_lines=False, show_bytes=False):
"""Disassembles a queue of code objects. If we discover another code object whi... |
while len(queue) > 0:
co = queue.popleft()
if co.co_name not in ('<module>', '?'):
real_out.write("\n" + format_code_info(co, version) + "\n")
bytecode = Bytecode(co, opc, dup_lines=dup_lines)
real_out.write(bytecode.dis(show_bytes=show_bytes) + "\n")
for c in... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def disco_loop_asm_format(opc, version, co, real_out, fn_name_map, all_fns):
"""Produces disassembly in a format more conducive to automatic assembly by producin... |
if version < 3.0:
co = code2compat(co)
else:
co = code3compat(co)
co_name = co.co_name
mapped_name = fn_name_map.get(co_name, co_name)
new_consts = []
for c in co.co_consts:
if iscode(c):
if version < 3.0:
c_compat = code2compat(c)
... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def wr_long(f, x):
"""Internal; write a 32-bit int to a file in little-endian order.""" |
if PYTHON3:
f.write(bytes([x & 0xff]))
f.write(bytes([(x >> 8) & 0xff]))
f.write(bytes([(x >> 16) & 0xff]))
f.write(bytes([(x >> 24) & 0xff]))
else:
f.write(chr( x & 0xff))
f.write(chr((x >> 8) & 0xff))
f.write(chr((x >> 16) & 0xff))
... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def dump_compile(codeobject, filename, timestamp, magic):
"""Write code object as a byte-compiled file Arguments: codeobject: code object filefile: bytecode file... |
# Atomically write the pyc/pyo file. Issue #13146.
# id() is used to generate a pseudo-random filename.
path_tmp = '%s.%s' % (filename, id(filename))
fc = None
try:
fc = open(path_tmp, 'wb')
if PYTHON3:
fc.write(bytes([0, 0, 0, 0]))
else:
fc.write('\... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def int2magic(magic_int):
"""Given a magic int like 62211, compute the corresponding magic byte string b'\x03\xf3\r\n' using the conversion method that does this... |
if (sys.version_info >= (3, 0)):
return struct.pack('<Hcc', magic_int, bytes('\r', 'utf-8'), bytes('\n', 'utf-8'))
else:
return struct.pack('<Hcc', magic_int, '\r', '\n') |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def sysinfo2float(version_info=sys.version_info):
"""Convert a sys.versions_info-compatible list into a 'canonic' floating-point number which that can then be us... |
vers_str = '.'.join([str(v) for v in version_info[0:3]])
if version_info[3] != 'final':
vers_str += '.' + ''.join([str(i) for i in version_info[3:]])
if IS_PYPY:
vers_str += 'pypy'
else:
try:
import platform
platform = platform.python_implementation()
... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def sysinfo2magic(version_info=sys.version_info):
"""Convert a list sys.versions_info compatible list into a 'canonic' floating-point number which that can then ... |
# FIXME: DRY with sysinfo2float()
vers_str = '.'.join([str(v) for v in version_info[0:3]])
if version_info[3] != 'final':
vers_str += ''.join([str(v) for v in version_info[3:]])
if IS_PYPY:
vers_str += 'pypy'
else:
try:
import platform
platform = pl... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def init_opdata(l, from_mod, version=None, is_pypy=False):
"""Sets up a number of the structures found in Python's opcode.py. Python opcode.py routines assign at... |
if version:
l['python_version'] = version
l['is_pypy'] = is_pypy
l['cmp_op'] = cmp_op
l['HAVE_ARGUMENT'] = HAVE_ARGUMENT
if version <= 3.5:
l['findlinestarts'] = findlinestarts
l['findlabels'] = findlabels
l['get_jump_targets'] = get_jump_targets
l['get_... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def rm_op(l, name, op):
"""Remove an opcode. This is used when basing a new Python release off of another one, and there is an opcode that is in the old release ... |
# opname is an array, so we need to keep the position in there.
l['opname'][op] = '<%s>' % op
if op in l['hasconst']:
l['hasconst'].remove(op)
if op in l['hascompare']:
l['hascompare'].remove(op)
if op in l['hascondition']:
l['hascondition'].remove(op)
if op in l['hasfree... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def opcode_check(l):
"""When the version of Python we are running happens to have the same opcode set as the opcode we are importing, we perform checks to make s... |
# Python 2.6 reports 2.6000000000000001
if (abs(PYTHON_VERSION - l['python_version']) <= 0.01
and IS_PYPY == l['is_pypy']):
try:
import dis
opmap = fix_opcode_names(dis.opmap)
# print(set(opmap.items()) - set(l['opmap'].items()))
# print(set(l['op... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def dump_opcodes(opmap):
"""Utility for dumping opcodes""" |
op2name = {}
for k in opmap.keys():
op2name[opmap[k]] = k
for i in sorted(op2name.keys()):
print("%-3s %s" % (str(i), op2name[i])) |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def pretty_flags(flags):
"""Return pretty representation of code flags.""" |
names = []
result = "0x%08x" % flags
for i in range(32):
flag = 1 << i
if flags & flag:
names.append(COMPILER_FLAG_NAMES.get(flag, hex(flag)))
flags ^= flag
if not flags:
break
else:
names.append(hex(flags))
names.reverse()... |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def _try_compile(source, name):
"""Attempts to compile the given source, first as an expression and then as a statement if the first approach fails. Utility func... |
try:
c = compile(source, name, 'eval')
except SyntaxError:
c = compile(source, name, 'exec')
return c |
<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
def get_code_object(x):
"""Helper to handle methods, functions, generators, strings and raw code objects""" |
if hasattr(x, '__func__'): # Method
x = x.__func__
if hasattr(x, '__code__'): # Function
x = x.__code__
if hasattr(x, 'gi_code'): # Generator
x = x.gi_code
if isinstance(x, str): # Source code
x = _try_compile(x, "<disassembly>")
if hasattr(x, 'co_code'): # Cod... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.