This page contains some advice about errors and problems commonly encountered during the development of Django applications.
Problems running django-admin¶
“command not found: django-admin”¶
django-admin should be on your system path if you installed Django via python setup.py. If it’s not on your path, you can find it in site-packages/django/bin, where site-packages is a directory within your Python installation. Consider symlinking to django-admin from some place on your path, such as /usr/local/bin.
If django-admin doesn’t work but django-admin.py does, you’re probably using a version of Django that doesn’t match the version of this documentation. django-admin is new in Django 1.7.
Mac OS X permissions¶
If you’re using Mac OS X, you may see the message “permission denied” when you try to run django-admin. This is because, on Unix-based systems like OS X, a file must be marked as “executable” before it can be run as a program. To do this, open Terminal.app and navigate (using the cd command) to the directory where django-admin is installed, then run the command sudo chmod +x django-admin.
I’m getting a UnicodeDecodeError. What am I doing wrong?¶
This class of errors happen when a bytestring containing non-ASCII sequences is transformed into a Unicode string and the specified encoding is incorrect. The output generally looks like this:
UnicodeDecodeError: 'ascii' codec can't decode byte 0x?? in position ?: ordinal not in range(128)
The resolution mostly depends on the context, however here are two common pitfalls producing this error:
Your system locale may be a default ASCII locale, like the “C” locale on UNIX-like systems (can be checked by the locale command). If it’s the case, please refer to your system documentation to learn how you can change this to a UTF-8 locale.
You created raw bytestrings, which is easy to do on Python 2:
my_string = 'café'
Either use the u'' prefix or even better, add the from __future__ import unicode_literals line at the top of your file so that your code will be compatible with Python 3.2 which doesn’t support the u'' prefix.