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-rw-r--r--youtube_dl/utils.py8
1 files changed, 8 insertions, 0 deletions
diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 0d0bbe8f6..65b492fb3 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -852,6 +852,8 @@ def unified_strdate(date_str):
return upload_date
def determine_ext(url, default_ext=u'unknown_video'):
+ if url is None:
+ return default_ext
guess = url.partition(u'?')[0].rpartition(u'.')[2]
if re.match(r'^[A-Za-z0-9]+$', guess):
return guess
@@ -1271,9 +1273,15 @@ def int_or_none(v, scale=1, default=None, get_attr=None, invscale=1):
if get_attr:
if v is not None:
v = getattr(v, get_attr, None)
+ if v == '':
+ v = None
return default if v is None else (int(v) * invscale // scale)
+def str_or_none(v, default=None):
+ return default if v is None else compat_str(v)
+
+
def str_to_int(int_str):
if int_str is None:
return None