.pyw files in python program

Python scripts (files with the extension .py) will be executed by python.exe by default. This executable opens a terminal, which stays open even if the program uses a GUI. If you do not want this to happen, use the extension .pyw which will cause the script to be executed by pythonw.exe by default (both executables are located in the top-level of your Python installation directory). This suppresses the terminal window on startup.

You can also make all .py scripts execute with pythonw.exe, setting this through the usual facilities, for example (might require administrative rights):

https://docs.python.org/2/using/windows.html

So in practice the only difference is that one leaves a console window hanging around and the other doesn’t. The most obvious usage for *.pyw are GUI apps since an app with an independent GUI obviously does not need or want the console window around.

There are some subtle implementation differences between python.exe and pythonw.exe see https://stackoverflow.com/a/30313091/3703989

Related Posts:

  1. How to use filter, map, and reduce in Python 3
  2. How to open a file using the open with statement
  3. Relative imports – ModuleNotFoundError: No module named x
  4. How to uninstall a package installed with pip install –user
  5. Best way to convert string to bytes in Python 3?
  6. PermissionError: [Errno 13] Permission denied
  7. What is setup.py?
  8. How is Anaconda related to Python?
  9. How to correct TypeError: Unicode-objects must be encoded before hashing?
  10. How to remove EOFError: EOF when reading a line?
  11. TypeError: cannot unpack non-iterable NoneType object
  12. Is there a ‘foreach’ function in Python 3?
  13. Python inline if statement
  14. How to install python3 version of package via pip on Ubuntu?
  15. How to copy a dictionary and only edit the copy
  16. How to print like printf in Python3?
  17. Could not find a version that satisfies the requirement tensorflow
  18. TypeError: ‘float’ object not iterable
  19. TypeError: ‘type’ object is not subscriptable when indexing in to a dictionary
  20. Invalid character in identifier
  21. Importing class from another file [duplicate]
  22. csv.Error: iterator should return strings, not bytes
  23. ‘str’ object has no attribute ‘decode’. Python 3 error?
  24. How to find all the indexes of a recurring item in a list?
  25. pandas: merge (join) two data frames on multiple columns
  26. How do you use subprocess.check_output() in Python?
  27. (Help) TypeError: ‘str’ object cannot be interpreted as an integer
  28. Why KeyError: 0
  29. Are dictionaries ordered in Python 3.6+?
  30. TypeError: method() takes 1 positional argument but 2 were given
  31. builtins.TypeError: must be str, not bytes
  32. TypeError: write() argument must be str, not bytes (Python 3 vs Python 2 )
  33. takes 1 positional argument but 2 were given
  34. How can I get a list shape without using numpy?
  35. Python 3 ImportError: No module named ‘ConfigParser’
  36. Why am I getting this syntax error: keyword can’t be an expression
  37. re.search().TypeError: cannot use a string pattern on a bytes-like object
  38. Add Legend to Seaborn point plot
  39. ctypes – Beginner
  40. How can I install Python’s pip3 on my Mac?
  41. How can I flush the output of the print function?
  42. Get ZeroDivisionError: float division in python
  43. ‘pip3’ is not recognized as an internal or external command, operable program or batch file
  44. TypeError: ‘encoding’ is an invalid keyword argument for this function
  45. Generate random sentences in python
  46. What is the Python 3 equivalent of “python -m SimpleHTTPServer”
  47. What does -> mean in Python function definitions?
  48. How do you use subprocess.check_output() in Python?
  49. TypeError(“‘bool’ object is not iterable”,) when trying to return a Boolean
  50. List attributes of an object [duplicate]
  51. “for line in…” results in UnicodeDecodeError: ‘utf-8’ codec can’t decode byte
  52. ValueError: unsupported pickle protocol: 3, python2 pickle can not load the file dumped by python 3 pickle?
  53. How do I format a string using a dictionary in python-3.x?
  54. How to troubleshoot an “AttributeError: __exit__” in multiproccesing in Python?
  55. TypeError: cannot unpack non-iterable NoneType object
  56. Shebang doesn’t work with python3
  57. Type error Unhashable type:set
  58. Python was not found; run without arguments to install from the Microsoft Store, or disable this shortcut from Settings
  59. Python map object is not subscriptable
  60. pythonw.exe or python.exe?
  61. Replacing a character from a certain index
  62. Using Look Up Tables in Python
  63. ImportError: No module named ‘google’
  64. Get a random sample with replacement
  65. Django Rest Framework — no module named rest_framework
  66. Unsupported operation :not writeable python
  67. NameError: global name ‘unicode’ is not defined – in Python 3
  68. Conda command is not recognized on Windows 10
  69. TypeError: int() argument must be a string, a bytes-like object or a number, not ‘list’
  70. Python TypeError: non-empty format string passed to object.__format__
  71. AttributeError: ‘Series’ object has no attribute ‘reshape’
  72. how to exit a python script in an if statement
  73. ImportError: No module named ‘django.core.urlresolvers’
  74. How to do a Sigma in python 3
  75. Python 3: Multiply a vector by a matrix without NumPy
  76. How to fix “Can’t find a default Python” error
  77. TypeError: ‘newline’ is an invalid keyword argument for this function
  78. Not able to pip install pickle in python 3.6
  79. environment variables PYSPARK_PYTHON and PYSPARK_DRIVER_PYTHON
  80. Python: urllib.error.HTTPError: HTTP Error 404: Not Found
  81. Decode Hex String in Python 3
  82. “This constructor takes no arguments” error in __init__
  83. ValueError: cannot switch from manual field specification to automatic field numbering
  84. Printing subscript in python
  85. How to embed image or picture in jupyter notebook, either from a local machine or from a web resource?
  86. Meaning of list[-1] in Python
  87. Tkinter error: Couldn’t recognize data in image file
  88. How to install Openpyxl with pip
  89. How can I count time in Python 3?
  90. What is the correct format to write float value to file in Python
  91. Using strip() to clean up a string
  92. “E: Unable to locate package python3-pip”
  93. Generate a random letter in Python
  94. How to print a specific row of a pandas DataFrame?
  95. ‘module’ has no attribute ‘urlencode’
  96. Accessing dict_keys element by index in Python3
  97. How to install PyQt4 on Windows using pip?
  98. How to install PyQt4 on Windows using pip?
  99. KeyError: ‘plotly_domain’
  100. TypeError: ‘zip’ object is not subscriptable

Leave a Comment