Python printing a file to stdout

Question

I ve searched and I can only find questions about the other way around  writing stdin to a file     Is there a quick and easy way to dump the contents of a file to stdout

User · Answer

you can also try this  print    join file  example txt

User · Answer

My shortened version in Python3  print open  file txt   read

User · Answer

You can try this   txt    lt file path gt  txt opn   open txt  print txt opn read     This will give you file output

User · Answer

Sure  Assuming you have a string with the file s name called fname  the following does the trick   with open fname   r   as fin      print fin read

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If it s a large file and you don t want to consume a ton of memory as might happen with Ben s solution  the extra code in    gt  gt  gt  import shutil  gt  gt  gt  import sys  gt  gt  gt  with open  test txt    r   as f         shutil copyfileobj f  sys stdout    also works

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To improve on  bgporter s answer  with Python-3 you will probably want to operate on bytes instead of needlessly converting things to utf-8   gt  gt  gt  import shutil  gt  gt  gt  import sys  gt  gt  gt  with open  quot test txt quot    quot rb quot   as f         shutil copyfileobj f  sys stdout buffer

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f   open  file txt    r   print f read   f close     From http   docs python org tutorial inputoutput html     To read a file   s contents  call f read size   which reads some quantity of data and returns it as a string  size is an optional numeric argument  When size is omitted or negative  the entire contents of the file will be read and returned  it   s your problem if the file is twice as large as your machine   s memory  Otherwise  at most size bytes are read and returned  If the end of the file has been reached  f read   will return an empty string

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If you need to do this with the pathlib module  you can use pathlib Path open   to open the file and print the text from read    from pathlib import Path  fpath   Path  quot somefile txt quot    with fpath open   as f      print f read     Or simply call pathlib Path read text    from pathlib import Path  fpath   Path  quot somefile txt quot    print fpath read text

[python] Python: printing a file to stdout

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