Fixed #19397 -- Crash on binary files in project templates.

import stat

import sys

import tempfile

import codecs

try:

    from urllib.request import urlretrieve

except ImportError:     # Python 2

                # Only render the Python files, as we don't want to

                # accidentally render Django templates files

                with codecs.open(old_path, 'r', 'utf-8') as template_file:

                with open(old_path, 'rb') as template_file:

                    content = template_file.read()

                if filename.endswith(extensions) or filename in extra_files:

                    content = content.decode('utf-8')

                    template = Template(content)

                    content = template.render(context)

                with codecs.open(new_path, 'w', 'utf-8') as new_file:

                    content = content.encode('utf-8')

                with open(new_path, 'wb') as new_file:

                    new_file.write(content)

                if self.verbosity >= 2: