Python loop for inside lambda

Question

In my code I need to simplify as much as possible my line of code  EDIT  I think I m not clear enough - it needs to be one line of code  I need to put a for loop inside a lambda expression  something like that   x   lambda x   for i in x   print i    I just do not know how to make it happen  Thanks

User · Answer

Just in case  if someone is looking for a similar problem     Most solutions given here are one line and are quite readable and simple  Just wanted to add one more that does not need the use of lambda I am assuming that you are trying to use lambda just for the sake of making it a one line code    Instead  you can use a simple list comprehension    print i  for i in x    BTW  the return values will be a list on None s

User · Answer

To add on to chepner s answer for Python 3 0 you can alternatively do   x   lambda x  list map print  x     Of course this is only if you have the means of using Python   3 in the future    Looks a bit cleaner in my opinion  but it also has a weird return value  but you re probably discarding it anyway   I ll just leave this here for reference

User · Answer

Since a for loop is a statement  as is print  in Python 2 x   you cannot include it in a lambda expression  Instead  you need to use the write method on sys stdout along with the join method   x   lambda x  sys stdout write   n  join x      n

User · Answer

If you are like me just want to print a sequence within a lambda  without get the return value  list of None    x   range 3  from   future   import print function             if not python 3 pra   lambda seq x  map print seq  and None       pra for  print all  pra   pra  abc

User · Answer

anon and chepner s answers are on the right track  Python 3 x has a print function and this is what you will need if you want to embed print within a function  and  a fortiori  lambdas    However  you can get the print function very easily in python 2 x by importing from the standard library s future module  Check it out    gt  gt  gt from   future   import print function  gt  gt  gt   gt  gt  gt iterable     a   b   c    gt  gt  gt map print  iterable  a b c  None  None  None   gt  gt  gt    I guess that looks kind of weird  so feel free to assign the return to   if you would like to suppress  None  None  None  s output  you are interested in the side-effects only  I assume     gt  gt  gt     map print  iterable  a b c  gt  gt  gt

[python] Python loop for inside lambda

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