How can I retrieve a list of all methods defined in a Python class?

Obtaining Class Methods in Python

Python classes provide various methods for accessing their functionality. To obtain a list of all methods defined in a class, you can employ the inspect.getmembers() function.

Usage:

<code class="python">from inspect import getmembers

# Get class methods
class_methods = getmembers(class_object, predicate=inspect.ismethod)</code>

Parameters:

• class_object: The class for which you want to retrieve methods.
• predicate: A filter function that indicates which members to include. Only methods are included by default.

Return Value:

• A list of tuples, where each tuple represents a class member. The first element is the member's name, and the second element is the member's value (usually an unbound method).

Example:

To list the methods defined in the optparse.OptionParser class, use the following code:

<code class="python">from optparse import OptionParser
import inspect

class_methods = inspect.getmembers(OptionParser, predicate=inspect.ismethod)

print(class_methods)</code>

Output:

[(('__init__', <unbound method OptionParser.__init__>),
  ('add_option', <unbound method OptionParser.add_option>),
  ...)]

Note:

• getmembers() can also be used to retrieve attributes and other class members.
• Passing an instance of a class to getmembers() instead of the class itself allows you to access the class's methods and attributes bound to the specific instance.

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