def askstring(self, prompt=None, title=None, parent=None,
initialvalue=None, oklabel=None, validatecmd=None):
from idlelib.querydialog import askstring
if parent is None:
parent = self.root
return askstring(prompt=prompt, title=title, parent=parent,
initialvalue=initialvalue, validatecmd=validatecmd,
oklabel=oklabel, use_ttk=self.using_ttk)
def askstring(self,
prompt=None,
title=None,
parent=None,
initialvalue=None,
oklabel=None,
validatecmd=None):
from idlelib.querydialog import askstring
if parent is None:
parent = self.root
return askstring(prompt=prompt,
title=title,
parent=parent,
initialvalue=initialvalue,
validatecmd=validatecmd,
oklabel=oklabel,
use_ttk=self.using_ttk)
def _decode(self, two_lines, bytes):
"Create a Unicode string."
chars = None
# Check presence of a UTF-8 signature first
if bytes.startswith(BOM_UTF8):
try:
chars = bytes[3:].decode("utf-8")
except UnicodeDecodeError:
# has UTF-8 signature, but fails to decode...
return None, False
else:
# Indicates that this file originally had a BOM
self.fileencoding = 'BOM'
return chars, False
# Next look for coding specification
try:
enc = coding_spec(two_lines)
except LookupError as name:
tkMessageBox.showerror(
title="Error loading the file",
message="The encoding '%s' is not known to this Python "\
"installation. The file may not display correctly" % name,
parent = self.text)
enc = None
except UnicodeDecodeError:
return None, False
if enc:
try:
chars = str(bytes, enc)
self.fileencoding = enc
return chars, False
except UnicodeDecodeError:
pass
# Try ascii:
try:
chars = str(bytes, 'ascii')
self.fileencoding = None
return chars, False
except UnicodeDecodeError:
pass
# Try utf-8:
try:
chars = str(bytes, 'utf-8')
self.fileencoding = 'utf-8'
return chars, False
except UnicodeDecodeError:
pass
# Finally, try the locale's encoding. This is deprecated;
# the user should declare a non-ASCII encoding
try:
# Wait for the editor window to appear
self.editwin.text.update()
enc = querydialog.askstring(
title="Specify file encoding",
prompt="The file's encoding is invalid for Python 3.x.\n"
"IDLE will convert it to UTF-8.\n"
"What is the current encoding of the file?",
initialvalue = locale_encoding,
parent = self.editwin.text, use_ttk=ui.using_ttk)
if enc:
chars = str(bytes, enc)
self.fileencoding = None
return chars, True
except (UnicodeDecodeError, LookupError):
pass
return None, False # None on failure
