| diff --git a/jinja2/environment.py b/jinja2/environment.py | |
| index ebb5454..1b5dc40 100644 | |
| --- a/jinja2/environment.py | |
| +++ b/jinja2/environment.py | |
| @@ -570,6 +570,10 @@ class Environment(object): | |
| py_header = imp.get_magic() + \ | |
| u'\xff\xff\xff\xff'.encode('iso-8859-15') | |
| + # Python 3.3 added a source filesize to the header | |
| + if sys.version_info >= (3, 3): | |
| + py_header += u'\x00\x00\x00\x00'.encode('iso-8859-15') | |
| + | |
| def write_file(filename, data, mode): | |
| if zip: | |
| info = ZipInfo(filename) |