Python Strings Cheat Sheet by Nouha_Thabet

Operations on strings and examples:

Multiline strings

x = "­"­" This is a multiline string­"­"­"

Get the character at a specific position

x = "­Python Progra­mmi­ng" print(­x[1])    ­#print character at position 1 >>> y

Slicing

x = "­Python Progra­mmi­ng" print(­x[3:5]) >>> ho

Negative Indexing

x = "­Python Progra­mmi­ng" print(­x[-­15:­-13]) >>> ho

String Length

x = "­Hel­lo" print(­len(x)) >>> 5

Remove any whitespace from the beginning or the end

x = "­    Hello     " print(­x.s­trip())     #return "­Hel­lo"

Return the string in lower case

x = Hello print(­x.l­ower())     #return "­hel­lo"

Return the string in upper case

x = Hello print(­x.u­pper())     #return "­HEL­LO"

Replace a string with another string

x = "­Hel­lo" print(­x.r­epl­ace­("He­"­,"A"))  ­  #return "­All­o"

Choose a separator and split string into substrings

x = "­Python Progra­mmi­ng" print(­x.s­pli­t(" ")) # return ['Python' , 'Progr­amm­ing']

Check if a string is present in a text

txt = "­Tunisia is a North African countr­y" x = "­Nor­th" in txt print(x) # return True

Concat­enation

x = "­Hel­lo" y = "­Wor­ld" z = x + " " + y print(z) # return "­Hello World"

Insert numbers into strings

quantity = 3 itemno = 567 price = 49.95 myorder = "I want {} pieces of item {} for {} dollar­s." print(myorder.format(quantity, itemno, price))