Python type and built-in functions

List Type Common functions:

Append (obj): Add an object at the end of the list

Count (obj): Count the number of occurrences of an object in a list

Extend (SEQ): Adds the contents of the sequence SEQ to the list

Index (Obj,i=0,j=len): Calculates the index position of the object obj in the list

Insert (Index,obj): Inserts an object into the list at the position specified by index

Pop (INDEX=-1): Reads and deletes an object at the index position, which defaults to the last object

Remove (obj): Removes an object from the list obj

Reverse (): Get reverse List

List.sort (func=none,key=none,reverse=false): Sort members in a list in a specified manner

Set type built-in functions:

Add (): Add new Element

Update (SEQ): The collection is updated with a sequence, and each element of the sequence is added to the collection

Remove (Element): Delete elements

Dictionary (dictionary) built-in functions:

Clear (): Clears all (key, value) pairs in the dictionary.

Copy (): Copy a copy of the dictionary

Fromkeys (Seq,val=none): Creates a dictionary with the elements in SEQ as keys, and all keys are set to val,val default to None

Get (Key,default=none): reads the key in the dictionary, returns the value of the key: Returns the value set by default if the key is not found

Has_key (key): Determines whether the key is present in the dictionary, returns True if it exists, otherwise returns false

Items (): Returns a list that contains the tuple (key, value) in the dictionary

Keys (): Returns a list of all keys in a dictionary

Iteritems (): Returns an iterator to all (key, value) pairs in the dictionary

Iterkeys (): Returns an iterator to all keys in the dictionary

Itervallues (): Returns an iterator to all values in the dictionary

Pop (Key[,default]): Reads the value of a key and removes the value of the key from the dictionary, and throws a Keyerror exception if key key does not exist and default is not set

SetDefault (Key,default=none): Sets the value of key in dictionary to default

Update (DICT): Merging dictionaries

VALUES (): Returns a list that contains all the values in the dictionary

Python type and built-in functions