Django manage.py returns ValueError: zero length field name in format

[Carlos Quiros]

Hi,

I am trying to run a Django application in Python 2.6.6 Django==1.5.5 . But when I try to run

python manage.py

I get:

Traceback (most recent call last):
  File "manage.py", line 12, in <module>
    print('Your environment is:"{}"'.format(os.environ['DJANGO_SETTINGS_MODULE']))
ValueError: zero length field name in format

Any idea what is wrong? I am also running the same application in another server but with Python 2.7.5 and it works ok.

Note: DJANGO_SETTINGS_MODULE is an environmental variable in both systems

Thanks,

Carlos

[Mario Gudelj]

Sounds like you need 2.7 or at least 3. Check out this answer on SO http://stackoverflow.com/questions/10054122/valueerror-zero-length-field-name-in-format-python

Can't have print('Your environment is:"{}"'.format(os.environ['DJANGO_SETTINGS_MODULE']))

Should be print('Your environment is:"{0}"'.format(os.environ['DJANGO_SETTINGS_MODULE']))

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[Jaimin Patel]

Its highly recommended that you use Python 2.7. It should resolve the issue.

Thanks.

[Jaimin Patel]

Here you can read it, https://docs.djangoproject.com/en/dev/releases/1.5/#python-compatibility

though I agree that is should be working fine with your current setup as it does mention that its compatible with 2.6.5+. However, if its not too much trouble just update to 2.7 and it should work fine. (I had come across this issue in past and python version upgrade fixed for me.)