CODEWITHSUNDEEP
python
Ricky Robinson
Ricky Robinson

Reputation: 22903

python info function: where is it?

From Dive into Python:

Python has a function called info. Try it yourself and skim through the list now.

>>> from apihelper import info
>>> import __builtin__
>>> info(__builtin__, 20)
ArithmeticError      Base class for arithmetic errors.
AssertionError       Assertion failed.
AttributeError       Attribute not found.
EOFError             Read beyond end of file.
EnvironmentError     Base class for I/O related errors.
Exception            Common base class for all exceptions.
FloatingPointError   Floating point operation failed.
IOError              I/O operation failed.

It turns out that Python does not have a function called info. What was the book referring to?

Upvotes: 3

Views: 5470

Answers (3)

Sunil Lulla
Sunil Lulla

Reputation: 813

Python don't have that module i.e. apihelper.py but diveintopython made that function in their tutorial 

  def info(object,spacing=10,collapse=1):
       availableMethod = [method for method in dir(object) if    callable(getattr(object,method))];
       processFunc = collapse and (lambda s: " ".join(s.split())) or (lambda s: s)
       print "\n".join(["%s %s" % (method.ljust(spacing),processFunc(getattr(object, method).__doc__)) for method in availableMethod])

This is the function they have developed, that what they are referring to its in the file apihelper.py that's why

  from apihelper import info

hope it helps. :)

Upvotes: 0

Andrei Boyanov
Andrei Boyanov

Reputation: 2393

apihelper is a module from the book. You have to download it.

I found this link for this exemple and many others: http://www.diveintopython.net/download/diveintopython-examples-5.4.zip

Upvotes: 1

senshin
senshin

Reputation: 10360

I don't know why Dive Into Python claims that "Python has a function called info", but it's obviously not true.

apihelper.py (from which info is imported) is described earlier in the book, in section 4.1, and is just a module that Mark Pilgrim wrote for use with Dive Into Python. That apihelper module apparently does contain an info function that does what is claimed in section 4.3.3, which you linked.

Upvotes: 6

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