PEP-8 for function calls

I recently started working with Python/Django and I heard about the PEP 8 conventions. After having read PEP8 I had a better sense how to 'style' my code but I learned programming with Java and I used to just do whatever I like. Could you suggest how to put my example into PEP-8? much appreciated.

result = urllib.urlretrieve(
                            "https://secure.gravatar.com/avatar.php?"+
                            urllib.urlencode({
                                            'gravatar_id': hashlib.md5(email).hexdigest(),
                                            'size': srt(size)
                                            })
                            )

Solution

Try downloading code style linters such as pep8 (a program which checks your code to see if it matches PEP 8 requirements) or pylint. You can find a more comprehensive list and comparison of Python style checkers here: What are the comprehensive lint checkers for Python?

In fact, there's a pep8 checker available online: http://pep8online.com/

If we run your code through that, it tells you:

Code    Line  Column    Text 
E126    2     29        continuation line over-indented for hanging indent
E225    2     70        missing whitespace around operator
E126    4     45        continuation line over-indented for hanging indent
E501    4     80        line too long (90 > 79 characters)
W292    7     30        no newline at end of file

The fixed version of your code would look more like this:

result = urllib.urlretrieve(
    "https://secure.gravatar.com/avatar.php?" +
    urllib.urlencode({
        'gravatar_id': hashlib.md5(email).hexdigest(),
        'size': srt(size)
    })
)

In essence, the main PEP 8 violation you had was that you were indenting too much. A single indent is fine -- you don't need to align to the opening paren of the function calls. Python is also insistent that your lines don't go beyond 80 characters, but fixing the over-indentation also fixed that issue.