How do I convert a list of ascii values to a string in python

Question

I ve got a list in a Python program that contains a series of numbers  which are themselves ASCII values   How do I convert this into a  regular  string that I can echo to the screen

User · Answer

def working ascii                    G    r   e    e    t    i     n   g    s              71  114  101  101  116  105  110  103  115  33              hello    71  114  101  101  116  105  110  103  115  33      pmsg      join chr i  for i in hello      print pmsg       for i in range 33  256           print   ascii   0  char   1   format i  chr i     working ascii

User · Answer

You are probably looking for  chr       gt  gt  gt  L    104  101  108  108  111  44  32  119  111  114  108  100   gt  gt  gt     join chr i  for i in L   hello  world

User · Answer

Perhaps not as Pyhtonic a solution  but easier to read for noobs like me   charlist    34  38  49  67  89  45  103  105  119  125  mystring      for char in charlist      mystring   mystring   chr char  print mystring

User · Answer

Same basic solution as others  but I personally prefer to use map instead of the list comprehension        L    104  101  108  108  111  44  32  119  111  114  108  100         join map chr L    hello  world

User · Answer

l    83  84  65  67  75   s      join  chr c  for c in l    print s

User · Answer

def working ascii                    G    r   e    e    t    i     n   g    s              71  114  101  101  116  105  110  103  115  33              hello    71  114  101  101  116  105  110  103  115  33      pmsg      join chr i  for i in hello      print pmsg       for i in range 33  256           print   ascii   0  char   1   format i  chr i     working ascii

User · Answer

I ve timed the existing answers  Code to reproduce is below  TLDR is that bytes seq  decode   is by far the fastest  Results here    test bytes decode   12 8046   s rep      test join map   62 1697   s rep test array library   63 7088   s rep     test join list   112 021   s rep test join iterator   171 331   s rep     test naive add   286 632   s rep   Setup was CPython 3 8 2  32-bit   Windows 10  i7-2600 3 4GHz  Interesting observations    The  official  fastest answer  as reposted by Toni Ru  a  is now out of date for Python 3  but once fixed is still basically tied for second place Joining a mapped sequence is almost twice as fast as a list comprehension The list comprehension is faster than its non-list counterpart   Code to reproduce is here   import array  string  timeit  random from collections import namedtuple    Thomas Wouters  https   stackoverflow com a 180615 13528444  def test join iterator seq       return    join chr c  for c in seq     community wiki  https   stackoverflow com a 181057 13528444  def test join map seq       return    join map chr  seq      Thomas Vander Stichele  https   stackoverflow com a 180617 13528444  def test join list seq       return    join  chr c  for c in seq      Toni Ru  a  https   stackoverflow com a 184708 13528444    Also from https   www python org doc essays list2str  def test array library seq       return array array  b   seq  tobytes   decode      Updated from tostring   for Python 3    David White  https   stackoverflow com a 34246694 13528444  def test naive add seq       output          for c in seq          output    chr c      return output    Timo Herngreen  https   stackoverflow com a 55509509 13528444  def test bytes decode seq       return bytes seq  decode    RESULT      join random choices string printable  None  k 1000   INT SEQ    ord c  for c in RESULT  REPS 10000  if   name         main         tests             name  test         for  name  test  in globals   items           if name startswith  test               Result   namedtuple  Result     name    passed    time    reps        results             Result              name name              passed test INT SEQ     RESULT              time timeit Timer                  stmt f  name  INT SEQ                    setup f from   main   import INT SEQ   name                     timeit REPS    REPS              reps REPS          for name  test in tests items             results sort key lambda r  r time if r passed else float  inf         def seconds per rep secs            unit  amount                    s   secs  if secs  gt  1             else   ms   secs   10    3  if secs  gt   10    -3              else     s   secs   10    6  if secs  gt   10    -6              else   ns   secs   10    9           return f  amount  6   unit  rep       max name length   max len name  for name in tests      for r in results          print              r name rjust max name length                                 failed  if not r passed else seconds per rep r time

User · Answer

Perhaps not as Pyhtonic a solution  but easier to read for noobs like me   charlist    34  38  49  67  89  45  103  105  119  125  mystring      for char in charlist      mystring   mystring   chr char  print mystring

User · Answer

You can use bytes list  decode   to do this - and list string encode    to get the values back

User · Answer

l    83  84  65  67  75   s      join  chr c  for c in l    print s

User · Answer

You are probably looking for  chr       gt  gt  gt  L    104  101  108  108  111  44  32  119  111  114  108  100   gt  gt  gt     join chr i  for i in L   hello  world

User · Answer

Same basic solution as others  but I personally prefer to use map instead of the list comprehension        L    104  101  108  108  111  44  32  119  111  114  108  100         join map chr L    hello  world

User · Answer

I ve timed the existing answers  Code to reproduce is below  TLDR is that bytes seq  decode   is by far the fastest  Results here    test bytes decode   12 8046   s rep      test join map   62 1697   s rep test array library   63 7088   s rep     test join list   112 021   s rep test join iterator   171 331   s rep     test naive add   286 632   s rep   Setup was CPython 3 8 2  32-bit   Windows 10  i7-2600 3 4GHz  Interesting observations    The  official  fastest answer  as reposted by Toni Ru  a  is now out of date for Python 3  but once fixed is still basically tied for second place Joining a mapped sequence is almost twice as fast as a list comprehension The list comprehension is faster than its non-list counterpart   Code to reproduce is here   import array  string  timeit  random from collections import namedtuple    Thomas Wouters  https   stackoverflow com a 180615 13528444  def test join iterator seq       return    join chr c  for c in seq     community wiki  https   stackoverflow com a 181057 13528444  def test join map seq       return    join map chr  seq      Thomas Vander Stichele  https   stackoverflow com a 180617 13528444  def test join list seq       return    join  chr c  for c in seq      Toni Ru  a  https   stackoverflow com a 184708 13528444    Also from https   www python org doc essays list2str  def test array library seq       return array array  b   seq  tobytes   decode      Updated from tostring   for Python 3    David White  https   stackoverflow com a 34246694 13528444  def test naive add seq       output          for c in seq          output    chr c      return output    Timo Herngreen  https   stackoverflow com a 55509509 13528444  def test bytes decode seq       return bytes seq  decode    RESULT      join random choices string printable  None  k 1000   INT SEQ    ord c  for c in RESULT  REPS 10000  if   name         main         tests             name  test         for  name  test  in globals   items           if name startswith  test               Result   namedtuple  Result     name    passed    time    reps        results             Result              name name              passed test INT SEQ     RESULT              time timeit Timer                  stmt f  name  INT SEQ                    setup f from   main   import INT SEQ   name                     timeit REPS    REPS              reps REPS          for name  test in tests items             results sort key lambda r  r time if r passed else float  inf         def seconds per rep secs            unit  amount                    s   secs  if secs  gt  1             else   ms   secs   10    3  if secs  gt   10    -3              else     s   secs   10    6  if secs  gt   10    -6              else   ns   secs   10    9           return f  amount  6   unit  rep       max name length   max len name  for name in tests      for r in results          print              r name rjust max name length                                 failed  if not r passed else seconds per rep r time

User · Answer

import array def f7 list       return array array  B   list  tostring     from Python Patterns - An Optimization Anecdote

User · Answer

Question    67  121  98  101  114  71  105  114  108  122  print    join chr number  for number in Question

User · Answer

Question    67  121  98  101  114  71  105  114  108  122  print    join chr number  for number in Question

User · Answer

Same basic solution as others  but I personally prefer to use map instead of the list comprehension        L    104  101  108  108  111  44  32  119  111  114  108  100         join map chr L    hello  world

User · Answer

l    83  84  65  67  75   s      join  chr c  for c in l    print s

User · Answer

You are probably looking for  chr       gt  gt  gt  L    104  101  108  108  111  44  32  119  111  114  108  100   gt  gt  gt     join chr i  for i in L   hello  world

User · Answer

import array def f7 list       return array array  B   list  tostring     from Python Patterns - An Optimization Anecdote

User · Answer

l    83  84  65  67  75   s      join  chr c  for c in l    print s

User · Answer

import array def f7 list       return array array  B   list  tostring     from Python Patterns - An Optimization Anecdote

User · Answer

You can use bytes list  decode   to do this - and list string encode    to get the values back

User · Answer

Same basic solution as others  but I personally prefer to use map instead of the list comprehension        L    104  101  108  108  111  44  32  119  111  114  108  100         join map chr L    hello  world

User · Answer

import array def f7 list       return array array  B   list  tostring     from Python Patterns - An Optimization Anecdote

User · Answer

You are probably looking for  chr       gt  gt  gt  L    104  101  108  108  111  44  32  119  111  114  108  100   gt  gt  gt     join chr i  for i in L   hello  world

[python] How do I convert a list of ascii values to a string in python?

Examples related to python

Examples related to string

Examples related to ascii