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Diffstat (limited to 'Lib/turtledemo/demohelp.txt')
| -rw-r--r-- | Lib/turtledemo/demohelp.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Lib/turtledemo/demohelp.txt b/Lib/turtledemo/demohelp.txt index 5a7f557..11842e1 100644 --- a/Lib/turtledemo/demohelp.txt +++ b/Lib/turtledemo/demohelp.txt @@ -54,6 +54,9 @@ (2) How to add your own demos to the demo repository - Place the file in the same directory as turtledemo/__main__.py + IMPORTANT! When imported, the demo should not modify the system + by calling functions in other modules, such as sys, tkinter, or + turtle. Global variables should be initialized in main(). - The code must contain a main() function which will be executed by the viewer (see provided example scripts). @@ -65,7 +68,7 @@ if __name__ == '__main__': main() - mainloop() # keep window + mainloop() # keep window open python -m turtledemo.mydemo # will then run it |