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Datatypes in Python...

 Basic datatypes  in python are

  • String
  • Integer
  • Float
  • Complex Numbers 
  • Built-in datastructures 
  1. list
  2. tuple
  3. set
  4. dictionary

  • Built-in methods on String:

stringname.capitalize() - First letter of string is converted in uppercase

stringname.casefold()  - Converts string into lower case

stringname.upper()-Coverts the whole string into uppercase.

stringname.lower()-Converts the whole string into lowercase.

stringname.count()- Prints the number of times a specific value is occurred

stringname.isnumeric() - Returs whether the values in string are numeric or not

stringname.isupper() - Returns whether the string is in uppercase or not i.e True or False

stringname.islower() - Returns whether the string is in lowercase or note i.e True or False

stringname.startswith("suffix") - Tells whether the string starts with particular suffix

stringname.endswith("prefix") - Tells whether the string ends with particular prefix

for more similar methods run print(dir("stringname"))

List

  • Properties of List
List are ordered 
List are mutable
List are dynamic
List elements can be accessed by index
  • Built-in methods of List

 listname.insert(index,element) - Inserts single element into the List at specific index

listname.append(element) - Inserts single element at end of the list.

listname.extend([element1,element2,element3,..,,]) - Inserts more than one elements

listname.remove(element) - removes particular element from list

listname.pop(index) - removes  element with particular index from the list.

listname.count(element) - returns the number of elements with specified values.

listname.reverse() - turns list into reverse order.

for more set methods run print(dir(listname))

Sets

  • Properties of Sets
Sets are unordered.
Duplication of elements is allowed.
Set elements are unique.
Elements cannot be accessed using index.


  • Built-in methods of Sets

setname.add(element) - adds single element into the set

setname.update([element1,element2,element3])- update the number of elements into the list

setname.remove(element) - Removes a particular element.

setname.pop()- pops a element from the set (It will pop any random element as its unordered)

for more set methods run print(dir(setname))


Dictionary

  • Properties of Dictionary

More than one entry per key is not allowed.
Value of dictionary can be of any type.

  • Built-in methods of Dictionary
dictname.keys()-  Returns all the keys from key value pair in dictionary
dictname.values() -Returns all the values from key value pair in dictionary
dictname.pop()-Pops elements with specific key-value pair
dictname.update({Key:value})- Updates the key value pair in dictionary
dictname.items()-Returns list containing tuple for each key value pair 

 for more set methods run print(dir(dictname))

Tuple

  • Properties of Tuples
Indexing is allowed 
Tuples are Ordered
Duplication is allowed
Cannot be altered as immutable



-Rushi Mahapure


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