NameError: name 'Tree' is not defined That's because the class has not been defined yet at this point. The workaround is using so called Forward Reference, i.e. wrapping a class name in a …

File "<input>", line 1, in <module> File "<string>", line 1, in <module> NameError: name 'dummy' is not defined Security considerations with Python 2.7's input: Since whatever user types is …

Mar 21, 2022 · NameError: name 'i' is not defined - Why does this happen? Asked 3 years, 9 months ago Modified 2 years, 6 months ago Viewed 18k times

Python NameError, variable 'not defined' Asked 9 years, 6 months ago Modified 9 years, 6 months ago Viewed 134k times

The behavior of Python's __file__ is much different than C's __FILE__. The C version will give you the original path of the source file. This is useful in logging errors and knowing which source …

May 19, 2015 · 48 It looks like you are trying to start the Python interpreter by running the command python. However the interpreter is already started. It is interpreting python as a …

Nov 17, 2014 · Your specific issue of NameError: name 'guess' is not defined is because guess is defined in your main function, but the while loop that it is failing on is outside of that function.

I dont know much about python. I want to start working on the project and the setup instruction says: pip install -r requirements-dev.txt Simple enougth. The problem is that I get this: Downlo...

Mar 15, 2011 · Python NameError: name 'Print' is not defined Asked 14 years, 9 months ago Modified 2 years, 3 months ago Viewed 96k times

Just to add a detail, if you are using the six library to manage Python 2/3 compatibility, you can make this: if six.PY3: unicode = str instead of sys.version_info stuff. This is also very helpful …