Use of Dir () and help () in Python

Python contains a number of built-in functions, class method properties, and various modules. We can use the Dir () function and the Help () function to get the information we want in Python idle interactive mode when we want to understand what property methods are available for a type and how each method is used. Dir ()

Dir () is used to query a class or all properties of an object, such as:

>>>dir (list) ['__add__','__class__','__contains__','__delattr__','__delitem__','__dir__','__doc__','__eq__','__format__','__ge__','__getattribute__','__getitem__','__gt__','__hash__','__iadd__','__imul__','__init__','__iter__','__le__','__len__','__lt__','__mul__','__ne__','__new__','__reduce__','__reduce_ex__','__repr__','__reversed__','__rmul__','__setattr__','__setitem__','__sizeof__','__str__','__subclasshook__','Append','Clear','Copy','Count','Extend','Index','Insert','Pop','Remove','Reverse','Sort']>>>

Help ()

The Help () function helps us understand the details of modules, types, objects, methods, properties

1. Help view type details, including how the class is created, properties, methods

>>>Help (list)classListinchModule Builtins:classList (object)| List ()New Empty list| List (iterable), new list initialized fromIterable's Items| |Methods defined here:| |__add__(Self, value,/) | Return self+value.| |__contains__(Self, key,/) | Return KeyinchSelf .| |__delitem__(Self, key,/) |Delete Self[key].| |__eq__(Self, value,/) | Return self==value.| |__ge__(Self, value,/) | Return self>=value.| |__getattribute__(Self, name,/) |Return getattr (self, name).| |__getitem__(...) | X.__getitem__(y) <==>X[y]| |__gt__(Self, value,/) | Return self>value.| |__iadd__(Self, value,/) | Implement self+=value.| |__imul__(Self, value,/) | Implement self*=value.| |__init__(Self,/, *args, * *Kwargs)--More--

2. Help to view detailed usage information of the method (be careful to enter the full path when using, need to import the module first when using the module Help)

>>> fromSelenium.webdriver.common.byImport by>>> Help onclassByinchModule selenium.webdriver.common.by:classby (Builtins.object)|Set of supported locator strategies.| |Data descriptors defined here:| |__dict__| Dictionary forInstance variables (ifdefined)| |__weakref__| List of weak references to the object (ifdefined)| |  ---------------------------------------------------------------------- | Data andOther attributes defined here:| | Class_name ='class name'| | Css_selector ='CSS Selector'| | ID ='ID'| | Link_text ='Link Text'| | NAME ='name'| | Partial_link_text ='Partial link text'| | Tag_name ='Tag Name'| | XPATH ='XPath'>>>

Use of Dir () and help () in Python