Finding what methods a Python object has Finding what methods a Python object has python python

Finding what methods a Python object has


For many objects, you can use this code, replacing 'object' with the object you're interested in:

object_methods = [method_name for method_name in dir(object)                  if callable(getattr(object, method_name))]

I discovered it at diveintopython.net (now archived). Hopefully, that should provide some further detail!

If you get an AttributeError, you can use this instead:

getattr( is intolerant of pandas style python3.6 abstract virtual sub-classes. This code does the same as above and ignores exceptions.

import pandas as pddf = pd.DataFrame([[10, 20, 30], [100, 200, 300]],                  columns=['foo', 'bar', 'baz'])def get_methods(object, spacing=20):  methodList = []  for method_name in dir(object):    try:        if callable(getattr(object, method_name)):            methodList.append(str(method_name))    except:        methodList.append(str(method_name))  processFunc = (lambda s: ' '.join(s.split())) or (lambda s: s)  for method in methodList:    try:        print(str(method.ljust(spacing)) + ' ' +              processFunc(str(getattr(object, method).__doc__)[0:90]))    except:        print(method.ljust(spacing) + ' ' + ' getattr() failed')get_methods(df['foo'])


You can use the built in dir() function to get a list of all the attributes a module has. Try this at the command line to see how it works.

>>> import moduleName>>> dir(moduleName)

Also, you can use the hasattr(module_name, "attr_name") function to find out if a module has a specific attribute.

See the Guide to Python introspection for more information.


The simplest method is to use dir(objectname). It will display all the methods available for that object. Cool trick.


matomo