Python Lint? (was "Can Python supplant Java?")

Neal Norwitz neal at metaslash.com
Fri Aug 23 00:26:35 CEST 2002


On Thu, 22 Aug 2002 14:02:29 -0400, Webb Sprague wrote:

> Hi All,
> 
> It seems to me that it would be pretty easy to address the type checking
> question by some thing like the following:
> 
> When you are going to use a variable, assign it a default in the
> appropriate type (stringv = '', intv = 0, etc).  Run the Python script
> through a lint type program that would flag any variables assigned to
> without such a "declaration" or any variables assigned a new type.
> 
> I have been helped by Perl's "use strict;" / "my" feature many times. My
> idea might approximate it.

'Pretty easy' is relative. :-)  But there's PyChecker at
http://pychecker.sf.net

$ cat bad.py:

	def func():
	    # initialize our list^h^h^h^hdict
	    d = []
	    # do something here
	    print d.keys()

$ pychecker bad.py

	bad.py:6: Object (d) has no attribute (keys)

Neal



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