compatible get object on Win-Platform

Author: dt3310321

qcloud_cos/streambody.py

@@ -43,4 +43,6 @@ def get_stream_to_file(self, file_name, auto_decompress=False):
             if os.path.exists(tmp_file_name):
                 os.remove(tmp_file_name)
             raise IOError("download failed with incomplete file")
+        if os.path.exists(file_name):
+            os.remove(file_name)
         os.rename(tmp_file_name, file_name)

qcloud_cos/version.py

@@ -1,2 +1,2 @@
 
-__version__ = '5.1.7.4'
+__version__ = '5.1.7.5'

setup.py

@@ -16,7 +16,7 @@ def long_description():
 
 setup(
     name='cos-python-sdk-v5',
-    version='1.7.4',
+    version='1.7.5',
     url='https://www.qcloud.com/',
     license='MIT',
     author='tiedu, lewzylu, channingliu',