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-rw-r--r--urlinstall.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/urlinstall.py b/urlinstall.py
index 597646e1c..1a570ff05 100644
--- a/urlinstall.py
+++ b/urlinstall.py
@@ -57,6 +57,10 @@ def urlretrieve(location, file, callback=None):
except:
filesize = None
+ # handle zero length case
+ if filesize == 0:
+ filesize = None
+
# create output file
f = open(file, 'w+')