fix 1

Author: Wulian233

Lib/zipfile/__init__.py

@@ -1904,7 +1904,7 @@ def writestr(self, zinfo_or_arcname, data,
         if isinstance(data, str):
             data = data.encode("utf-8")
         if not isinstance(zinfo_or_arcname, ZipInfo):
-            get_time = int(os.environ.get('SOURCE_DATE_EPOCH')) or time.time()
+            get_time = int(os.environ.get('SOURCE_DATE_EPOCH'), time.time())
             zinfo = ZipInfo(filename=zinfo_or_arcname,
                             date_time=time.gmtime(get_time)[:6])
             zinfo.compress_type = self.compression