cefpython/src/helpers.pyx at cefpython56 · pythonthings/cefpython · GitHub

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# Project website: https://github.com/cztomczak/cefpython

include "cefpython.pyx"

import os

import platform

import re

import traceback

import time

import codecs

def ExceptHook(exc_type, exc_value, exc_trace):

"""Global except hook to exit app cleanly on error.

This hook does the following: in case of exception write it to

the "error.log" file, display it to the console, shutdown CEF

and exit application immediately by ignoring "finally" (_exit()).

"""

print("[CEF Python] ExceptHook: catched exception, will shutdown CEF")

QuitMessageLoop()

Shutdown()

msg = "".join(traceback.format_exception(exc_type, exc_value,

exc_trace))

error_file = GetAppPath("error.log")

encoding = GetAppSetting("string_encoding") or "utf-8"

if type(msg) == bytes:

msg = msg.decode(encoding=encoding, errors="replace")

try:

with codecs.open(error_file, mode="a", encoding=encoding) as fp:

fp.write("\n[%s] %s\n" % (

time.strftime("%Y-%m-%d %H:%M:%S"), msg))

except:

print("[CEF Python] WARNING: failed writing to error file: %s" % (

error_file))

# Convert error message to ascii before printing, otherwise

# you may get error like this:

# | UnicodeEncodeError: 'charmap' codec can't encode characters

msg = msg.encode("ascii", errors="replace")

msg = msg.decode("ascii", errors="replace")

print("\n"+msg)

# noinspection PyProtectedMember

os._exit(1)

cpdef str GetModuleDirectory():

"""Get path to the cefpython module (so/pyd)."""

if platform.system() == "Linux" and os.getenv("CEFPYTHON3_PATH"):

# cefpython3 package __init__.py sets CEFPYTHON3_PATH.

# When cefpython3 is installed as debian package, this

# env variable is the only way of getting valid path.

return os.getenv("CEFPYTHON3_PATH")

if hasattr(sys, "frozen"):

path = os.path.dirname(sys.executable)

elif "__file__" in globals():

path = os.path.dirname(os.path.realpath(__file__))

else:

path = os.getcwd()

if platform.system() == "Windows":

path = re.sub(r"[/\\]+", re.escape(os.sep), path)

path = re.sub(r"[/\\]+$", "", path)

return os.path.abspath(path)

g_GetAppPath_dir = None

cpdef str GetAppPath(file_=None):

"""Get application path."""

# On Windows after downloading file and calling Browser.GoForward(),

# current working directory is set to %UserProfile%.

# Calling os.path.dirname(os.path.realpath(__file__))

# returns for eg. "C:\Users\user\Downloads". A solution

# is to cache path on first call.

if not g_GetAppPath_dir:

if hasattr(sys, "frozen"):

adir = os.path.dirname(sys.executable)

else:

adir = os.getcwd()

global g_GetAppPath_dir

g_GetAppPath_dir = adir

# If file is None return current directory without trailing slash.

if file_ is None:

file_ = ""

# Only when relative path.

if not file_.startswith("/") and not file_.startswith("\\") and (

not re.search(r"^[\w-]+:", file_)):

path = g_GetAppPath_dir + os.sep + file_

if platform.system() == "Windows":

path = re.sub(r"[/\\]+", re.escape(os.sep), path)

path = re.sub(r"[/\\]+$", "", path)

return path

return str(file_)

cefpython/src/helpers.pyx at cefpython56 · pythonthings/cefpython · GitHub

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