Why is Pydev giving a syntax error for built-in keywords?

Question

Why is Pydev giving me syntax errors for built-in python functions like str()?

Undefined variable: str

Undefined variable: False

Undefined variable: float

code? does python even need you to id if its a str or float? — John Riselvato, Nov 11 '11 at 20:13
http://docs.python.org/library/functions.html#str `str(object)` — John Riselvato, Nov 11 '11 at 20:19
I do not get any error for that. maybe you have a problem with Pydev configuration? — joaquin, Nov 11 '11 at 20:58
@pylover Any idea what could not be configured properly within the interpreter? — Raffi Khatchadourian, Nov 11 '11 at 22:57
@joaquin Any idea what could cause the problem in the configuration? — Raffi Khatchadourian, Nov 11 '11 at 22:57
Follow the installation procedures indicated in pydev [documentation](http://pydev.org/manual_101_root.html) and check you defined/loaded your project, set your interpreter, paths, etc as indicated there. — joaquin, Nov 12 '11 at 03:12
I had this problem under Windows 7, when there was not enough empty space on drive C: (Python27 was installed on C:). Freeing some space and re-starting Eclipse solved the problem. — Dmitry Shintyakov, Jun 05 '14 at 11:40

score 20 · Accepted Answer · answered Nov 12 '11 at 02:02

20

Remove and re-add the python interpreter in the PyDev configuration. Make sure that the project is using the newly added interpreter.

answered Nov 12 '11 at 02:02

1

This had no effect on freshly installed Aptana 3.6 PyDev running OS X 10.11 . I am still getting "Undefined variable: None". I had not choice but to revert to Aptana 3.4. – user1255933 Feb 24 '16 at 00:10
I tried that, it did not fix the problem using python 3.4 in an anaconda environment. – Soerendip Jul 06 '16 at 15:51

score 3 · Answer 2 · edited Feb 12 '15 at 14:48

3

This means that there's a problem with starting the shell to get completions for builtins (usually a firewall or a misconfiguration in the network -- see: http://pydev.org/faq.html#PyDevFAQ-WhenIdoacodecompletion%2CPyDevhangs%2CwhatcanIdo%3F which may give you hints on how to solve it).

Also, please add details on your error log if you're unable to solve it (see: http://pydev.org/faq.html#how_do_i_report_a_bug for details on getting the error log).

edited Feb 12 '15 at 14:48

RickyA

answered Nov 12 '11 at 09:39

Fabio Zadrozny

That's interesting, but I don't have a problem with the hanging completions. It's more a matter of built-ins not being recognized. This is a difficult one to reproduce, but if it happens again I will report the bug. – Raffi Khatchadourian Nov 14 '11 at 22:45
@Fabio I've had both, and actually your first link led me to the solution. – tishma Mar 25 '13 at 17:32

score 0 · Answer 3 · edited May 23 '17 at 12:32

0

For those ppl who are using Aptana and have the same Problem:

I upgraded Aptana and PyDev with the following instructions:

after the upgrade PyDev worked just fine for me :)

edited May 23 '17 at 12:32

Community

answered Mar 30 '15 at 13:03

Whilst this may theoretically answer the question, [it would be preferable](http://meta.stackoverflow.com/q/8259) to include the essential parts of the answer here, and provide the link for reference. – Yurii Mar 30 '15 at 13:20

3 Answers3