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Fix "ERROR: Cannot write metadata to JSON file" on Windows

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Fixes #4246
This commit is contained in:
Ivan Kozik 2014-11-20 06:05:39 +00:00
parent 61ee5aeb73
commit 1394646a0a
1 changed files with 8 additions and 1 deletions
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9
youtube_dl/utils.py
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@ -71,7 +71,7 @@ def preferredencoding():
def write_json_file(obj, fn): def write_json_file(obj, fn):
""" Encode obj as JSON and write it to fn, atomically """ """ Encode obj as JSON and write it to fn, atomically if possible """
fn = encodeFilename(fn) fn = encodeFilename(fn)
if sys.version_info < (3, 0) and sys.platform != 'win32': if sys.version_info < (3, 0) and sys.platform != 'win32':
@ -108,6 +108,13 @@ def write_json_file(obj, fn):
try: try:
with tf: with tf:
json.dump(obj, tf) json.dump(obj, tf)
if sys.platform == 'win32':
# Need to remove existing file on Windows, else os.rename raises
# WindowsError or FileExistsError.
try:
os.unlink(fn)
except OSError:
pass
os.rename(tf.name, fn) os.rename(tf.name, fn)
except: except:
try: try: