How to get TabError?

[Mr. Magoo]

Can someone provide a snippet which, when run, generates a TabError?

I can only seem to get SyntaxError and IndentationError.

Thanks,
M

 

[Jeff Epler]

When running with "-tt", you can get this error.

[jepler@sofa src]$ python -tt
Python 2.3.3 (#1, May 7 2004, 10:31:40)
[GCC 3.3.3 20040412 (Red Hat Linux 3.3.3-7)] on linux2
Type "help", "copyright", "credits" or "license" for more information.Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "<string>", line 3
b
^
TabError: inconsistent use of tabs and spaces in indentation


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[Fredrik Lundh]

Can someone provide a snippet which, when run, generates a TabError?

I can only seem to get SyntaxError and IndentationError.

$ python -c "print repr(open('test.py').read())"
'if 1:\n\tprint "hello"\n print "goodbye"\n'

$ python test.py
hello
goodbye

$ python -t test.py
test.py: inconsistent use of tabs and spaces in indentation
hello
goodbye

$ python -tt test.py
File "test.py", line 3
print "goodbye"
^
TabError: inconsistent use of tabs and spaces in indentation

</F>

 

[Mr. Magoo]

$ python -c "print repr(open('test.py').read())"
'if 1:\n\tprint "hello"\n print "goodbye"\n'

$ python test.py
hello
goodbye

$ python -t test.py
test.py: inconsistent use of tabs and spaces in indentation
hello
goodbye

$ python -tt test.py
File "test.py", line 3
print "goodbye"
^
TabError: inconsistent use of tabs and spaces in indentation

</F>

Thanks.

Is there a reason (good or otherwise why py_compile dumps this and
IndentationError in a different format than SyntaxError?

M

 

[Mr. Magoo]

$ python -t test.py
test.py: inconsistent use of tabs and spaces in indentation
hello
goodbye

On more question. When using py_compile from with a script, is there any
way to force the -t flag?

M

 

[Fredrik Lundh]

On more question. When using py_compile from with a script, is there any
way to force the -t flag?

if you want to check for tab problems from inside a script, use the
tabnanny module:

http://effbot.org/librarybook/tabnanny.htm

</F>