Module import path

Question

I'm unable to test-run a cssparser that I'd like to use.

test.py:

from css.parse import parse

data = """
    em {
    padding: 2px; 
    margin: 1em;
    border-width: medium;
    border-style: dashed;
    line-height: 2.4em;
    }
    p { color: red; font-size: 12pt }
    p:first-letter { color: green; font-size: 200% }
    p:first-line { color: blue }"""


for rule in parse(data):
    print (rule)

..gives an error:

Traceback (most recent call last):
  method <module> in test.py at line 1
    from css.parse import parse
  method <module> in test.py at line 6
    from . import css, csslex, cssyacc
  method <module> in test.py at line 8
    from . import serialize
  method <module> in test.py at line 6
    from . import css
ImportError: cannot import name css

Directory structure (/Users/nimbuz/Documents/python31):

/Users/nimbuz/Documents/python31/**csspy**/
|
+-- css/ (*has __init__.py*)
|
+-- uri/ (*has __init__.py*)
|
+-- test.py

print(sys.path) shows:

['/Users/nimbuz/Documents/python31/csspy', '/Library/Frameworks/Python.framework/Versions/3.1/lib/python31.zip', '/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1', '/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/plat-darwin', '/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/lib-dynload', '/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/site-packages']

Answer 1

Do you have __init__.py files in the cssparser and css directories, to turn the directories into packages? Is there a css/parse.py file with some function or class named parse in it? What's on your sys.path, and what's the current directory, when you execute test.py? All of these questions may be important, and you give us the answer to none of them, so it's hard to be of any specific help!-)

Answer 2

Does your css/ have an __init__.py?

Answer 3

Here is few steps I just tested.

• readme says its python 2.5, so you need python 2.x series

• I have created a folder C:/TEST/

• I have downloaded all files from css-py svn to C:/TEST/, so C:/TEST/css/ and C:/TEST/uri/ folders exists now.

• I have downloaded ply's tar gz file and extract only ply folder into C:/TEST/css/, so C:/TEST/css/ply/ folder exists now.

• I have created test.py in C:/TEST/ with the content

  from css.parse import parse
  print dir(parse)
  

• and I run it and the results is like this, without import errors:

  C:\TEST>test.py

  ['__call__', '__class__', '__closure__', '__code__', '__defaults__', '__delattr__', '__dict__', '__doc__', '__format__', '__get__', '__getattribute__', '__globals__', '__hash__', '__init__', '__module__', '__name__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'func_closure', 'func_code', 'func_defaults', 'func_dict', 'func_doc', 'func_globals', 'func_name']

Hope this helps. sorry If my explanation is bad.

Answer 4

python 3 version of css-py

http://ifile.it/v32n70s/css.zip

Answer 5

Don't call your own file css.py. Name it something else, like css_test.py. Delete the css.pyc file also.