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18fb155 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 | import ast
import base64
import importlib
import io
import os
import re
import traceback
from typing import Any, List
import matplotlib.pyplot as plt
import pandas as pd
import plotly.io as pio
from lida_ko.datamodel import ChartExecutorResponse, Summary
def preprocess_code(code: str) -> str:
"""Preprocess code to remove any preamble and explanation text"""
code = code.replace("<imports>", "")
code = code.replace("<stub>", "")
code = code.replace("<transforms>", "")
# remove all text after chart = plot(data)
if "chart = plot(data)" in code:
# print(code)
index = code.find("chart = plot(data)")
if index != -1:
code = code[: index + len("chart = plot(data)")]
if "```" in code:
pattern = r"```(?:\w+\n)?([\s\S]+?)```"
matches = re.findall(pattern, code)
if matches:
code = matches[0]
# code = code.replace("```", "")
# return code
if "import" in code:
# return only text after the first import statement
index = code.find("import")
if index != -1:
code = code[index:]
code = code.replace("```", "")
if "chart = plot(data)" not in code:
code = code + "\nchart = plot(data)"
return code
def get_globals_dict(code_string, data):
# Parse the code string into an AST
tree = ast.parse(code_string)
# Extract the names of the imported modules and their aliases
imported_modules = []
for node in tree.body:
if isinstance(node, ast.Import):
for alias in node.names:
module = importlib.import_module(alias.name)
imported_modules.append((alias.name, alias.asname, module))
elif isinstance(node, ast.ImportFrom):
module = importlib.import_module(node.module)
for alias in node.names:
obj = getattr(module, alias.name)
imported_modules.append(
(f"{node.module}.{alias.name}", alias.asname, obj)
)
# Import the required modules into a dictionary
globals_dict = {}
for module_name, alias, obj in imported_modules:
if alias:
globals_dict[alias] = obj
else:
globals_dict[module_name.split(".")[-1]] = obj
ex_dicts = {"pd": pd, "data": data, "plt": plt}
globals_dict.update(ex_dicts)
return globals_dict
class ChartExecutor:
"""Execute code and return chart object"""
def __init__(self) -> None:
pass
def execute(
self,
code_specs: List[str],
data: Any,
summary: Summary,
library="altair",
return_error: bool = False,
) -> Any:
"""Validate and convert code"""
# # check if user has given permission to execute code. if env variable
# # LIDA_ALLOW_CODE_EVAL is set to '1'. Else raise exception
# if os.environ.get("LIDA_ALLOW_CODE_EVAL") != '1':
# raise Exception(
# "Permission to execute code not granted. Please set the environment variable LIDA_ALLOW_CODE_EVAL to '1' to allow code execution.")
if isinstance(summary, dict):
summary = Summary(**summary)
charts = []
code_spec_copy = code_specs.copy()
code_specs = [preprocess_code(code) for code in code_specs]
if library == "altair":
for code in code_specs:
try:
ex_locals = get_globals_dict(code, data)
exec(code, ex_locals)
chart = ex_locals["chart"]
vega_spec = chart.to_dict()
del vega_spec["data"]
if "datasets" in vega_spec:
del vega_spec["datasets"]
vega_spec["data"] = {"url": f"/files/data/{summary.file_name}"}
charts.append(
ChartExecutorResponse(
spec=vega_spec,
status=True,
raster=None,
code=code,
library=library,
)
)
except Exception as exception_error:
print(code_spec_copy, "\n===========\n")
print(exception_error)
print(traceback.format_exc())
if return_error:
charts.append(
ChartExecutorResponse(
spec=None,
status=False,
raster=None,
code=code,
library=library,
error={
"message": str(exception_error),
"traceback": traceback.format_exc(),
},
)
)
return charts
elif library == "matplotlib" or library == "seaborn":
# print colum dtypes
for code in code_specs:
try:
ex_locals = get_globals_dict(code, data)
# print(ex_locals)
exec(code, ex_locals)
chart = ex_locals["chart"]
if plt:
buf = io.BytesIO()
plt.box(False)
plt.grid(color="lightgray", linestyle="dashed", zorder=-10)
# try:
# plt.draw()
# # plt.tight_layout()
# except AttributeError:
# print("Warning: tight_layout encountered an error. The layout may not be optimal.")
# pass
plt.savefig(buf, format="png", dpi=100, pad_inches=0.2)
buf.seek(0)
plot_data = base64.b64encode(buf.read()).decode("ascii")
plt.close()
charts.append(
ChartExecutorResponse(
spec=None,
status=True,
raster=plot_data,
code=code,
library=library,
)
)
except Exception as exception_error:
print(code_spec_copy[0])
print("****\n", str(exception_error))
# print(traceback.format_exc())
if return_error:
charts.append(
ChartExecutorResponse(
spec=None,
status=False,
raster=None,
code=code,
library=library,
error={
"message": str(exception_error),
"traceback": traceback.format_exc(),
},
)
)
return charts
elif library == "ggplot":
# print colum dtypes
for code in code_specs:
try:
ex_locals = get_globals_dict(code, data)
exec(code, ex_locals)
chart = ex_locals["chart"]
if plt:
buf = io.BytesIO()
chart.save(buf, format="png")
plot_data = base64.b64encode(buf.getvalue()).decode("utf-8")
charts.append(
ChartExecutorResponse(
spec=None,
status=True,
raster=plot_data,
code=code,
library=library,
)
)
except Exception as exception_error:
print(code)
print(traceback.format_exc())
if return_error:
charts.append(
ChartExecutorResponse(
spec=None,
status=False,
raster=None,
code=code,
library=library,
error={
"message": str(exception_error),
"traceback": traceback.format_exc(),
},
)
)
return charts
elif library == "plotly":
for code in code_specs:
try:
ex_locals = get_globals_dict(code, data)
exec(code, ex_locals)
chart = ex_locals["chart"]
if pio:
chart_bytes = pio.to_image(chart, 'png')
plot_data = base64.b64encode(chart_bytes).decode('utf-8')
charts.append(
ChartExecutorResponse(
spec=None,
status=True,
raster=plot_data,
code=code,
library=library,
)
)
except Exception as exception_error:
print(code)
print(traceback.format_exc())
if return_error:
charts.append(
ChartExecutorResponse(
spec=None,
status=False,
raster=None,
code=code,
library=library,
error={
"message": str(exception_error),
"traceback": traceback.format_exc(),
},
)
)
return charts
else:
raise Exception(
f"Unsupported library. Supported libraries are altair, matplotlib, seaborn, ggplot, plotly. You provided {library}"
)
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