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def is_module_installed(module_name, version=None, installed_version=None,
interpreter=None):
"""
Return True if module *module_name* is installed
If version is not None, checking module version
(module must have an attribute named '__version__')
version may starts ... |
def is_python_interpreter_valid_name(filename):
"""Check that the python interpreter file has a valid name."""
pattern = r'.*python(\d\.?\d*)?(w)?(.exe)?$'
if re.match(pattern, filename, flags=re.I) is None:
return False
else:
return True |
def is_python_interpreter(filename):
"""Evaluate wether a file is a python interpreter or not."""
real_filename = os.path.realpath(filename) # To follow symlink if existent
if (not osp.isfile(real_filename) or
not is_python_interpreter_valid_name(filename)):
return False
elif is_... |
def is_pythonw(filename):
"""Check that the python interpreter has 'pythonw'."""
pattern = r'.*python(\d\.?\d*)?w(.exe)?$'
if re.match(pattern, filename, flags=re.I) is None:
return False
else:
return True |
def check_python_help(filename):
"""Check that the python interpreter can execute help."""
try:
proc = run_program(filename, ["-h"])
output = to_text_string(proc.communicate()[0])
valid = ("Options and arguments (and corresponding environment "
"variables)")
... |
def sizeHint(self):
"""Override Qt method.
Returns the widget size hint (based on the editor font size).
"""
fm = QFontMetrics(self.editor.font())
size_hint = QSize(fm.height(), fm.height())
if size_hint.width() > 16:
size_hint.setWidth(16)
return siz... |
def _draw_breakpoint_icon(self, top, painter, icon_name):
"""Draw the given breakpoint pixmap.
Args:
top (int): top of the line to draw the breakpoint icon.
painter (QPainter)
icon_name (srt): key of icon to draw (see: self.icons)
"""
rect = QRect(0, ... |
def paintEvent(self, event):
"""Override Qt method.
Paint breakpoints icons.
"""
super(DebuggerPanel, self).paintEvent(event)
painter = QPainter(self)
painter.fillRect(event.rect(), self.editor.sideareas_color)
for top, line_number, block in self.editor.visible_... |
def mousePressEvent(self, event):
"""Override Qt method
Add/remove breakpoints by single click.
"""
line_number = self.editor.get_linenumber_from_mouse_event(event)
shift = event.modifiers() & Qt.ShiftModifier
self.editor.debugger.toogle_breakpoint(line_number,
... |
def mouseMoveEvent(self, event):
"""Override Qt method.
Draw semitransparent breakpoint hint.
"""
self.line_number_hint = self.editor.get_linenumber_from_mouse_event(
event)
self.update() |
def on_state_changed(self, state):
"""Change visibility and connect/disconnect signal.
Args:
state (bool): Activate/deactivate.
"""
if state:
self.editor.sig_breakpoints_changed.connect(self.repaint)
self.editor.sig_debug_stop.connect(self.set_current... |
def handle_qbytearray(obj, encoding):
"""Qt/Python2/3 compatibility helper."""
if isinstance(obj, QByteArray):
obj = obj.data()
return to_text_string(obj, encoding=encoding) |
def sleeping_func(arg, secs=10, result_queue=None):
"""This methods illustrates how the workers can be used."""
import time
time.sleep(secs)
if result_queue is not None:
result_queue.put(arg)
else:
return arg |
def start(self):
"""Start the worker (emits sig_started signal with worker as arg)."""
if not self._started:
self.sig_started.emit(self)
self._started = True |
def _start(self):
"""Start process worker for given method args and kwargs."""
error = None
output = None
try:
output = self.func(*self.args, **self.kwargs)
except Exception as err:
error = err
if not self._is_finished:
self.sig_finis... |
def _get_encoding(self):
"""Return the encoding/codepage to use."""
enco = 'utf-8'
# Currently only cp1252 is allowed?
if WIN:
import ctypes
codepage = to_text_string(ctypes.cdll.kernel32.GetACP())
# import locale
# locale.getpreferredenc... |
def _set_environment(self, environ):
"""Set the environment on the QProcess."""
if environ:
q_environ = self._process.processEnvironment()
for k, v in environ.items():
q_environ.insert(k, v)
self._process.setProcessEnvironment(q_environ) |
def _partial(self):
"""Callback for partial output."""
raw_stdout = self._process.readAllStandardOutput()
stdout = handle_qbytearray(raw_stdout, self._get_encoding())
if self._partial_stdout is None:
self._partial_stdout = stdout
else:
self._partial_stdou... |
def _communicate(self):
"""Callback for communicate."""
if (not self._communicate_first and
self._process.state() == QProcess.NotRunning):
self.communicate()
elif self._fired:
self._timer.stop() |
def communicate(self):
"""Retrieve information."""
self._communicate_first = True
self._process.waitForFinished()
enco = self._get_encoding()
if self._partial_stdout is None:
raw_stdout = self._process.readAllStandardOutput()
stdout = handle_qbytearray(ra... |
def _start(self):
"""Start process."""
if not self._fired:
self._partial_ouput = None
self._process.start(self._cmd_list[0], self._cmd_list[1:])
self._timer.start() |
def terminate(self):
"""Terminate running processes."""
if self._process.state() == QProcess.Running:
try:
self._process.terminate()
except Exception:
pass
self._fired = True |
def _clean_workers(self):
"""Delete periodically workers in workers bag."""
while self._bag_collector:
self._bag_collector.popleft()
self._timer_worker_delete.stop() |
def _start(self, worker=None):
"""Start threads and check for inactive workers."""
if worker:
self._queue_workers.append(worker)
if self._queue_workers and self._running_threads < self._max_threads:
#print('Queue: {0} Running: {1} Workers: {2} '
# 'Thre... |
def create_python_worker(self, func, *args, **kwargs):
"""Create a new python worker instance."""
worker = PythonWorker(func, args, kwargs)
self._create_worker(worker)
return worker |
def create_process_worker(self, cmd_list, environ=None):
"""Create a new process worker instance."""
worker = ProcessWorker(cmd_list, environ=environ)
self._create_worker(worker)
return worker |
def terminate_all(self):
"""Terminate all worker processes."""
for worker in self._workers:
worker.terminate()
# for thread in self._threads:
# try:
# thread.terminate()
# thread.wait()
# except Exception:
# pas... |
def _create_worker(self, worker):
"""Common worker setup."""
worker.sig_started.connect(self._start)
self._workers.append(worker) |
def gather_file_data(name):
"""
Gather data about a given file.
Returns a dict with fields name, mtime and size, containing the relevant
data for the fiel.
"""
res = {'name': name}
try:
res['mtime'] = osp.getmtime(name)
res['size'] = osp.getsize(name)
except OSError:
... |
def file_data_to_str(data):
"""
Convert file data to a string for display.
This function takes the file data produced by gather_file_data().
"""
if not data:
return _('<i>File name not recorded</i>')
res = data['name']
try:
mtime_as_str = time.strftime('%Y-%m-%d %H:%M:%S',
... |
def make_temporary_files(tempdir):
"""
Make temporary files to simulate a recovery use case.
Create a directory under tempdir containing some original files and another
directory with autosave files. Return a tuple with the name of the
directory with the original files, the name of the directory wi... |
def gather_data(self):
"""
Gather data about files which may be recovered.
The data is stored in self.data as a list of tuples with the data
pertaining to the original file and the autosave file. Each element of
the tuple is a dict as returned by gather_file_data().
"""
... |
def add_label(self):
"""Add label with explanation at top of dialog window."""
txt = _('Autosave files found. What would you like to do?\n\n'
'This dialog will be shown again on next startup if any '
'autosave files are not restored, moved or deleted.')
label = QL... |
def add_label_to_table(self, row, col, txt):
"""Add a label to specified cell in table."""
label = QLabel(txt)
label.setMargin(5)
label.setAlignment(Qt.AlignLeft | Qt.AlignVCenter)
self.table.setCellWidget(row, col, label) |
def add_table(self):
"""Add table with info about files to be recovered."""
table = QTableWidget(len(self.data), 3, self)
self.table = table
labels = [_('Original file'), _('Autosave file'), _('Actions')]
table.setHorizontalHeaderLabels(labels)
table.verticalHeader().hid... |
def add_cancel_button(self):
"""Add a cancel button at the bottom of the dialog window."""
button_box = QDialogButtonBox(QDialogButtonBox.Cancel, self)
button_box.rejected.connect(self.reject)
self.layout.addWidget(button_box) |
def register_plugin(self):
"""Register plugin in Spyder's main window"""
self.redirect_stdio.connect(self.main.redirect_internalshell_stdio)
self.main.console.shell.refresh.connect(self.refresh_plugin)
iconsize = 24
self.toolbar.setIconSize(QSize(iconsize, iconsize))
... |
def refresh_plugin(self):
"""Refresh widget"""
curdir = getcwd_or_home()
self.pathedit.add_text(curdir)
self.save_wdhistory()
self.set_previous_enabled.emit(
self.histindex is not None and self.histindex > 0)
self.set_next_enabled.emit(... |
def load_wdhistory(self, workdir=None):
"""Load history from a text file in user home directory"""
if osp.isfile(self.LOG_PATH):
wdhistory, _ = encoding.readlines(self.LOG_PATH)
wdhistory = [name for name in wdhistory if os.path.isdir(name)]
else:
if wor... |
def save_wdhistory(self):
"""Save history to a text file in user home directory"""
text = [ to_text_string( self.pathedit.itemText(index) ) \
for index in range(self.pathedit.count()) ]
try:
encoding.writelines(text, self.LOG_PATH)
except EnvironmentErr... |
def select_directory(self):
"""Select directory"""
self.redirect_stdio.emit(False)
directory = getexistingdirectory(self.main, _("Select directory"),
getcwd_or_home())
if directory:
self.chdir(directory)
self.redirect_st... |
def parent_directory(self):
"""Change working directory to parent directory"""
self.chdir(os.path.join(getcwd_or_home(), os.path.pardir)) |
def chdir(self, directory, browsing_history=False,
refresh_explorer=True, refresh_console=True):
"""Set directory as working directory"""
if directory:
directory = osp.abspath(to_text_string(directory))
# Working directory history management
if browsing_... |
def toogle_breakpoint(self, line_number=None, condition=None,
edit_condition=False):
"""Add/remove breakpoint."""
if not self.editor.is_python_like():
return
if line_number is None:
block = self.editor.textCursor().block()
else:
... |
def get_breakpoints(self):
"""Get breakpoints"""
breakpoints = []
block = self.editor.document().firstBlock()
for line_number in range(1, self.editor.document().blockCount()+1):
data = block.userData()
if data and data.breakpoint:
breakpoints.appen... |
def clear_breakpoints(self):
"""Clear breakpoints"""
self.breakpoints = []
for data in self.editor.blockuserdata_list[:]:
data.breakpoint = False
# data.breakpoint_condition = None # not necessary, but logical
if data.is_empty():
# This is not... |
def set_breakpoints(self, breakpoints):
"""Set breakpoints"""
self.clear_breakpoints()
for line_number, condition in breakpoints:
self.toogle_breakpoint(line_number, condition)
self.breakpoints = self.get_breakpoints() |
def breakpoints_changed(self):
"""Breakpoint list has changed"""
breakpoints = self.get_breakpoints()
if self.breakpoints != breakpoints:
self.breakpoints = breakpoints
self.save_breakpoints() |
def unmatched_quotes_in_line(text):
"""Return whether a string has open quotes.
This simply counts whether the number of quote characters of either
type in the string is odd.
Take from the IPython project (in IPython/core/completer.py in v0.13)
Spyder team: Add some changes to deal with escaped qu... |
def on_state_changed(self, state):
"""Connect/disconnect sig_key_pressed signal."""
if state:
self.editor.sig_key_pressed.connect(self._on_key_pressed)
else:
self.editor.sig_key_pressed.disconnect(self._on_key_pressed) |
def _autoinsert_quotes(self, key):
"""Control how to automatically insert quotes in various situations."""
char = {Qt.Key_QuoteDbl: '"', Qt.Key_Apostrophe: '\''}[key]
line_text = self.editor.get_text('sol', 'eol')
line_to_cursor = self.editor.get_text('sol', 'cursor')
cursor = s... |
def populate(combobox, data):
"""
Populate the given ``combobox`` with the class or function names.
Parameters
----------
combobox : :class:`qtpy.QtWidets.QComboBox`
The combobox to populate
data : list of :class:`FoldScopeHelper`
The data to populate with. There should be one l... |
def _get_fold_levels(editor):
"""
Return a list of all the class/function definition ranges.
Parameters
----------
editor : :class:`spyder.plugins.editor.widgets.codeeditor.CodeEditor`
Returns
-------
folds : list of :class:`FoldScopeHelper`
A list of all the class or function ... |
def _adjust_parent_stack(fsh, prev, parents):
"""
Adjust the parent stack in-place as the trigger level changes.
Parameters
----------
fsh : :class:`FoldScopeHelper`
The :class:`FoldScopeHelper` object to act on.
prev : :class:`FoldScopeHelper`
The previous :class:`FoldScopeHelp... |
def _split_classes_and_methods(folds):
"""
Split out classes and methods into two separate lists.
Parameters
----------
folds : list of :class:`FoldScopeHelper`
The result of :func:`_get_fold_levels`.
Returns
-------
classes, functions: list of :class:`FoldScopeHelper`
... |
def _get_parents(folds, linenum):
"""
Get the parents at a given linenum.
If parents is empty, then the linenum belongs to the module.
Parameters
----------
folds : list of :class:`FoldScopeHelper`
linenum : int
The line number to get parents for. Typically this would be the
... |
def update_selected_cb(parents, combobox):
"""
Update the combobox with the selected item based on the parents.
Parameters
----------
parents : list of :class:`FoldScopeHelper`
combobox : :class:`qtpy.QtWidets.QComboBox`
The combobox to populate
Returns
-------
None
"""... |
def _update_data(self):
"""Update the internal data values."""
_old = self.folds
self.folds = _get_fold_levels(self.editor)
# only update our dropdown lists if the folds have changed.
if self.folds != _old:
self.classes, self.funcs = _split_classes_and_methods(self.f... |
def combobox_activated(self):
"""Move the cursor to the selected definition."""
sender = self.sender()
data = sender.itemData(sender.currentIndex())
if isinstance(data, FoldScopeHelper):
self.editor.go_to_line(data.line + 1) |
def update_selected(self, linenum):
"""Updates the dropdowns to reflect the current class and function."""
self.parents = _get_parents(self.funcs, linenum)
update_selected_cb(self.parents, self.method_cb)
self.parents = _get_parents(self.classes, linenum)
update_selected_cb(self... |
def set_palette(self, background, foreground):
"""
Set text editor palette colors:
background color and caret (text cursor) color
"""
palette = QPalette()
palette.setColor(QPalette.Base, background)
palette.setColor(QPalette.Text, foreground)
self.... |
def set_extra_selections(self, key, extra_selections):
"""Set extra selections for a key.
Also assign draw orders to leave current_cell and current_line
in the backgrund (and avoid them to cover other decorations)
NOTE: This will remove previous decorations added to the same key... |
def update_extra_selections(self):
"""Add extra selections to DecorationsManager.
TODO: This method could be remove it and decorations could be
added/removed in set_extra_selections/clear_extra_selections.
"""
extra_selections = []
for key, extra in list(self.ex... |
def clear_extra_selections(self, key):
"""Remove decorations added through set_extra_selections.
Args:
key (str) name of the extra selections group.
"""
for decoration in self.extra_selections_dict.get(key, []):
self.decorations.remove(decoration)
... |
def highlight_current_line(self):
"""Highlight current line"""
selection = TextDecoration(self.textCursor())
selection.format.setProperty(QTextFormat.FullWidthSelection,
to_qvariant(True))
selection.format.setBackground(self.currentline_color)
... |
def highlight_current_cell(self):
"""Highlight current cell"""
if self.cell_separators is None or \
not self.highlight_current_cell_enabled:
return
cursor, whole_file_selected, whole_screen_selected =\
self.select_current_cell_in_visible_portion()
... |
def cursor_position_changed(self):
"""Brace matching"""
if self.bracepos is not None:
self.__highlight(self.bracepos, cancel=True)
self.bracepos = None
cursor = self.textCursor()
if cursor.position() == 0:
return
cursor.movePosition(QTe... |
def set_wrap_mode(self, mode=None):
"""
Set wrap mode
Valid *mode* values: None, 'word', 'character'
"""
if mode == 'word':
wrap_mode = QTextOption.WrapAtWordBoundaryOrAnywhere
elif mode == 'character':
wrap_mode = QTextOption.WrapAnywhere
... |
def toPlainText(self):
"""
Reimplement Qt method
Fix PyQt4 bug on Windows and Python 3
"""
# Fix what appears to be a PyQt4 bug when getting file
# contents under Windows and PY3. This bug leads to
# corruptions when saving files with certain combinations
... |
def get_selection_as_executable_code(self):
"""Return selected text as a processed text,
to be executable in a Python/IPython interpreter"""
ls = self.get_line_separator()
_indent = lambda line: len(line)-len(line.lstrip())
line_from, line_to = self.get_selection_bounds(... |
def is_cell_separator(self, cursor=None, block=None):
"""Return True if cursor (or text block) is on a block separator"""
assert cursor is not None or block is not None
if cursor is not None:
cursor0 = QTextCursor(cursor)
cursor0.select(QTextCursor.BlockUnderCursor)
... |
def select_current_cell(self):
"""Select cell under cursor
cell = group of lines separated by CELL_SEPARATORS
returns the textCursor and a boolean indicating if the
entire file is selected"""
cursor = self.textCursor()
cursor.movePosition(QTextCursor.StartOfBlock)
... |
def select_current_cell_in_visible_portion(self):
"""Select cell under cursor in the visible portion of the file
cell = group of lines separated by CELL_SEPARATORS
returns
-the textCursor
-a boolean indicating if the entire file is selected
-a boolean indicating ... |
def go_to_next_cell(self):
"""Go to the next cell of lines"""
cursor = self.textCursor()
cursor.movePosition(QTextCursor.NextBlock)
cur_pos = prev_pos = cursor.position()
while not self.is_cell_separator(cursor):
# Moving to the next code cell
curso... |
def go_to_previous_cell(self):
"""Go to the previous cell of lines"""
cursor = self.textCursor()
cur_pos = prev_pos = cursor.position()
if self.is_cell_separator(cursor):
# Move to the previous cell
cursor.movePosition(QTextCursor.PreviousBlock)
... |
def __restore_selection(self, start_pos, end_pos):
"""Restore cursor selection from position bounds"""
cursor = self.textCursor()
cursor.setPosition(start_pos)
cursor.setPosition(end_pos, QTextCursor.KeepAnchor)
self.setTextCursor(cursor) |
def __duplicate_line_or_selection(self, after_current_line=True):
"""Duplicate current line or selected text"""
cursor = self.textCursor()
cursor.beginEditBlock()
start_pos, end_pos = self.__save_selection()
if to_text_string(cursor.selectedText()):
cursor.setPo... |
def __move_line_or_selection(self, after_current_line=True):
"""Move current line or selected text"""
cursor = self.textCursor()
cursor.beginEditBlock()
start_pos, end_pos = self.__save_selection()
last_line = False
# ------ Select text
# Get selection ... |
def go_to_new_line(self):
"""Go to the end of the current line and create a new line"""
self.stdkey_end(False, False)
self.insert_text(self.get_line_separator()) |
def extend_selection_to_complete_lines(self):
"""Extend current selection to complete lines"""
cursor = self.textCursor()
start_pos, end_pos = cursor.selectionStart(), cursor.selectionEnd()
cursor.setPosition(start_pos)
cursor.setPosition(end_pos, QTextCursor.KeepAnchor)
... |
def delete_line(self):
"""Delete current line"""
cursor = self.textCursor()
if self.has_selected_text():
self.extend_selection_to_complete_lines()
start_pos, end_pos = cursor.selectionStart(), cursor.selectionEnd()
cursor.setPosition(start_pos)
... |
def truncate_selection(self, position_from):
"""Unselect read-only parts in shell, like prompt"""
position_from = self.get_position(position_from)
cursor = self.textCursor()
start, end = cursor.selectionStart(), cursor.selectionEnd()
if start < end:
start = max(... |
def restrict_cursor_position(self, position_from, position_to):
"""In shell, avoid editing text except between prompt and EOF"""
position_from = self.get_position(position_from)
position_to = self.get_position(position_to)
cursor = self.textCursor()
cursor_position = cursor.... |
def hide_tooltip_if_necessary(self, key):
"""Hide calltip when necessary"""
try:
calltip_char = self.get_character(self.calltip_position)
before = self.is_cursor_before(self.calltip_position,
char_offset=1)
other = key ... |
def stdkey_home(self, shift, ctrl, prompt_pos=None):
"""Smart HOME feature: cursor is first moved at
indentation position, then at the start of the line"""
move_mode = self.__get_move_mode(shift)
if ctrl:
self.moveCursor(QTextCursor.Start, move_mode)
else:
... |
def mousePressEvent(self, event):
"""Reimplement Qt method"""
if sys.platform.startswith('linux') and event.button() == Qt.MidButton:
self.calltip_widget.hide()
self.setFocus()
event = QMouseEvent(QEvent.MouseButtonPress, event.pos(),
... |
def focusInEvent(self, event):
"""Reimplemented to handle focus"""
self.focus_changed.emit()
self.focus_in.emit()
self.highlight_current_cell()
QPlainTextEdit.focusInEvent(self, event) |
def focusOutEvent(self, event):
"""Reimplemented to handle focus"""
self.focus_changed.emit()
QPlainTextEdit.focusOutEvent(self, event) |
def wheelEvent(self, event):
"""Reimplemented to emit zoom in/out signals when Ctrl is pressed"""
# This feature is disabled on MacOS, see Issue 1510
if sys.platform != 'darwin':
if event.modifiers() & Qt.ControlModifier:
if hasattr(event, 'angleDelta'):
... |
def get_options(argv=None):
"""
Convert options into commands
return commands, message
"""
parser = argparse.ArgumentParser(usage="spyder [options] files")
parser.add_argument('--new-instance', action='store_true', default=False,
help="Run a new instance of Spyder, even if ... |
def set_recent_files(self, recent_files):
"""Set a list of files opened by the project."""
for recent_file in recent_files[:]:
if not os.path.isfile(recent_file):
recent_files.remove(recent_file)
try:
self.CONF[WORKSPACE].set('main', 'recent_files',
... |
def get_recent_files(self):
"""Return a list of files opened by the project."""
try:
recent_files = self.CONF[WORKSPACE].get('main', 'recent_files',
default=[])
except EnvironmentError:
return []
for rec... |
def set_root_path(self, root_path):
"""Set project root path."""
if self.name is None:
self.name = osp.basename(root_path)
self.root_path = to_text_string(root_path)
config_path = self.__get_project_config_path()
if osp.exists(config_path):
self.loa... |
def rename(self, new_name):
"""Rename project and rename its root path accordingly."""
old_name = self.name
self.name = new_name
pypath = self.relative_pythonpath # ??
self.root_path = self.root_path[:-len(old_name)]+new_name
self.relative_pythonpath = pypath # ??... |
def initialize(self):
"""Start pydoc server"""
QApplication.setOverrideCursor(QCursor(Qt.WaitCursor))
QApplication.processEvents()
self.start_server() |
def start_server(self):
"""Start pydoc server"""
if self.server is None:
self.port = select_port(default_port=self.DEFAULT_PORT)
self.set_home_url('http://localhost:%d/' % self.port)
elif self.server.isRunning():
self.server.server_started.disconnect(sel... |
def text_to_url(self, text):
"""Convert text address into QUrl object"""
if text.startswith('/'):
text = text[1:]
return QUrl(self.home_url.toString()+text+'.html') |
def do_autosave(self):
"""Instruct current editorstack to autosave files where necessary."""
logger.debug('Autosave triggered')
stack = self.editor.get_current_editorstack()
stack.autosave.autosave_all()
self.start_autosave_timer() |
def try_recover_from_autosave(self):
"""Offer to recover files from autosave."""
autosave_dir = get_conf_path('autosave')
autosave_mapping = CONF.get('editor', 'autosave_mapping', {})
dialog = RecoveryDialog(autosave_dir, autosave_mapping,
parent=self.edit... |
def create_unique_autosave_filename(self, filename, autosave_dir):
"""
Create unique autosave file name for specified file name.
Args:
filename (str): original file name
autosave_dir (str): directory in which autosave files are stored
"""
basename = osp.b... |
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