Python 3 print without parenthesis

Question

The print used to be a statement in Python 2  but now it became a function that requires parenthesis in Python 3    Is there anyway to suppress these parenthesis in Python 3  Maybe by re-defining the print function    So  instead of   print   Hello stack over flowers     I could type   print  Hello stack over flowers

User · Answer

Using print without parentheses in Python 3 code is not a good idea  Nor is creating aliases  etc  If that s a deal breaker  use Python 2   However  print without parentheses might be useful in the interactive shell  It s not really a matter of reducing the number of characters  but rather avoiding the need to press Shift twice every time you want to print something while you re debugging  IPython lets you call functions without using parentheses if you start the line with a slash   Python 3 6 6  default  Jun 28 2018  05 43 53  Type  copyright    credits  or  license  for more information IPython 6 4 0 -- An enhanced Interactive Python  Type     for help   In  1   var    Hello world   In  2    print var Hello world   And if you turn on autocall  you won t even need to type the slash   In  3    autocall Automatic calling is  Smart  In  4   print var ------ gt  print var  Hello world

User · Answer

Use Autohotkey to make a macro  AHK is free and dead simple to install  www autohotkey com  You could assign the macro to  say  alt-p    p  send print   Left    That will make alt-p put out print   and move your cursor to inside the parens   Or  even better  to directly solve your problem  you define an autoreplace and limit its scope to when the open file has the  py extension    IfWinActive  py                scope limiter  b  print   print   Left        I forget what b  does  The rest should be clear   IfWinActive                    remove the scope limitation   This is a guaranteed  painless  transparent solution

User · Answer

You can t  because the only way you could do it without parentheses is having it be a keyword  like in Python 2  You can t manually define a keyword  so no

User · Answer

In Python 3  print is a function  whereas it used to be a statement in previous versions  As  holdenweb suggested  use 2to3 to translate your code

User · Answer

No  That will always be a syntax error in Python 3  Consider using 2to3 to translate your code to Python 3

User · Answer

The AHK script is a great idea  Just for those interested I needed to change it a little bit to work for me   SetTitleMatchMode 2             allows for a partial search   IfWinActive   py               scope limiter to only python files  b  print   print   Left        I forget what b  does  IfWinActive                    remove the scope limitation

User · Answer

I finally figured out the regex to change these all in old Python2 example scripts  Otherwise use 2to3 py   Try it out on Regexr com  doesn t work in NP        find         lt  print             replace     2     for variables      lt  print          n     2   n   for label and variable      lt  print                   n     2   4  n

User · Answer

Although you need a pair of parentheses to print in Python 3  you no longer need a space after print  because it s a function  So that s only a single extra character   If you still find typing a single pair of parentheses to be  unnecessarily time-consuming   you can do p   print and save a few characters that way  Because you can bind new references to functions but not to keywords  you can only do this print shortcut in Python 3   Python 2    gt  gt  gt  p   print   File   lt stdin gt    line 1     p   print               SyntaxError  invalid syntax   Python 3    gt  gt  gt  p   print  gt  gt  gt  p  hello   hello   It ll make your code less readable  but you ll save those few characters every time you print something

[python] Python 3 print without parenthesis

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