What is Python Whitespace and how does it work

Question

I ve been searching google and this website for some time now  but I just can t seem to find a straight answer on the subject    What is whitespace in Python  I know it s something to do with indenting with each line  but I m not sure exactly how to use it  How does it work

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something    something1  something2   something3   In Python  Something     something1     something2 something3

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It acts as curly bracket  We have to keep the number of white spaces consistent through out the program   Example 1   def main         print  we are in main function       print  print 2nd line   main     Result          We are in main function   print 2nd line       Example 2   def main        print  we are in main function  print  print 2nd line   main     Result      print 2nd line   We are in main function   Here  in the 1st program  both the statement comes under the main function since both have equal number of white spaces while in the 2nd program  the 1st line is printed later because the main function is called after the 2nd line  Note - The 2nd line has no white space  so it is independent of the main function

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Whitespace is used to denote blocks   In other languages curly brackets    and    are common   When you indent  it becomes a child of the previous line   In addition to the indentation  the parent also has a colon following it   im a parent      im a child          im a grandchild     im another child          im another grand child   Off the top of my head  def  if  elif  else  try  except  finally  with  for  while  and class all start blocks   To end a block  you simple outdent  and you will have siblings   In the above im a child and im another child are siblings

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Every programming language has its own way of structuring the code  whenever you write a block of code  it has to be organised in a way to be understood by everyone   Usually used in conditional and classes and defining the definition  It represents the parent  child and grandchild and further   Example   def example       print  name      print  my name  example     Here you can say example   is a parent and others are children

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Whitespace just means characters which are used for spacing  and have an  empty  representation  In the context of python  it means tabs and spaces  it probably also includes exotic unicode spaces  but don t use them   The definitive reference is here  http   docs python org 2 reference lexical analysis html indentation     I m not sure exactly how to use it    Put it at the front of the line you want to indent  If you mix spaces and tabs  you ll likely see funky results  so stick with one or the other   The python community usually follows PEP8 style  which prescribes indentation of four spaces    You need to create a new indent level after each colon   for x in range 0  50       print x     print 2 x  print x   In this code  the first two print statements are  inside  the body of the for statement because they are indented more than the line containing the for  The third print is outside because it is indented less than the previous  nonblank  line   If you don t indent unindent consistently  you will get indentation errors  In addition  all compound statements  i e  those with a colon  can have the body supplied on the same line  so no indentation is required  but the body must be composed of a single statement   Finally  certain statements  like lambda feature a colon  but cannot have a multiline block as the body

[python] What is Python Whitespace and how does it work?

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