Uppal, Deepali wrote:
> Hello,
Hello, and welcome to the world of Python. Don't take anything we say
too personally, it is meant to help.
> I am facing a bit of a problem due to python implicitly
> attaching a type to an object.
Ooh. In general, don't say 'implicit'. For the most part, Python only
does things explicitly. See the Zen of Python by opening a Python
interpreter and typing "import this".
> I will briefly tell you the problem that
> I am facing. I am trying to print the docstring of a test case in
> my pyUnit base test class. I accept the name of the test class as
> a command line option. So instead of printing the docstring of
> the test case, it prints the docString of a string object.
Which is expected, because all command line options are strings. I
assume you are getting the command line option using the idiom:
import sys
options = sys.argv[1:]
> I would like to give an example here
> import test_script
>
> gettatr( test_script.test_class.test_case, ‘__doc__’)
I think you meant:
print getattr(test_script.test_class.test_case, '__doc__')
> With this simple code, I am able to print the docstring
> of the test case.
Yep, Python is simple and expressive.
> However, since I accept the test case information as a command line
> option. So instead of printing the docstring of the test case it
> prints the docstring of a string object.
Right, because all command line options are strings, since that is all
the shell can really hand off to Python.
> Is there someway, I can tell the script to change the type of
> the object from string to an instancetype of a test case?
In your first example, you import the test_script, and then do a
getattr() on the test_class inside test_script.py. If you are trying to
mimic that, and sending one or more test_script's, your code would look
something like:
import sys
for test_module in sys.argv[1:]
try:
_module = __import__(test_module)
_class = _module.test_class
_case = _class.test_case
print _case.__doc__
except ImportError:
print "Couldn't import module '%s'. Skipping..." % test_module
> I am quite a newbie in python so I would appreciate any help on this.
The above should get you started, even though it won't satisfy your
exact needs.
--
Paul McNett
http://paulmcnett.com
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