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import statements
-----------------
Put imports at the top, unless there is a good reason otherwise.
PEP 8 says to group stdlib, 3rd-party dependencies, and package imports.
For idlelib, the groups are general stdlib, tkinter, and idlelib.
Sort modules within each group, except that tkinter.ttk follows tkinter.
Sort 'from idlelib import mod1' and 'from idlelib.mod2 import object'
together by module, ignoring within module objects.
Put 'import __main__' after other idlelib imports.
Imports only needed for testing are put not at the top but in an
htest function def or "if __name__ == '__main__'" clause.
Within module imports like "from idlelib.mod import class" may cause
circular imports to deadlock. Even without this, circular imports may
require at least one of the imports to be delayed until a function call.
What's New entries
------------------
Repository directory Doc/whatsnew/ has a file 3.n.rst for each 3.n
Python version. For the first entry in each file, add subsection
'IDLE and idlelib', in alphabetical position, to the 'Improved Modules'
section. For the rest of cpython, entries to 3.(n+1).rst begin with
the release of 3.n.0b1. For IDLE, entries for features backported from
'main' to '3.n' during its beta period do not got in 3.(n+1).rst. The
latter usually gets its first entry during the 3.n.0 candidate period
or after the 3.n.0 release.
When, as per PEP 434, feature changes are backported, entries are placed
in the 3.n.rst file *in the main branch* for each Python version n that
gets the backport. (Note: the format of entries have varied between
versions.) Add a line "New in 3.n maintenance releases." before the
first back-ported feature after 3.n.0 is released. Since each older
version file gets a different number of backports, it is easiest to
make a separate PR for each file and label it with the backports
needed.
Github repository and issues
----------------------------
The CPython repository is https://github.com/python/cpython. The
IDLE Issues listing is https://github.com/orgs/python/projects/31.
The main classification is by Topic, based on the IDLE menu. View the
topics list by clicking the [<]] button in the upper right.
Original IDLE todo, much of it now outdated:
============================================
TO DO:
- improve debugger:
- manage breakpoints globally, allow bp deletion, tbreak, cbreak etc.
- real object browser
- help on how to use it (a simple help button will do wonders)
- performance? (updates of large sets of locals are slow)
- better integration of "debug module"
- debugger should be global resource (attached to flist, not to shell)
- fix the stupid bug where you need to step twice
- display class name in stack viewer entries for methods
- suppress tracing through IDLE internals (e.g. print) DONE
- add a button to suppress through a specific module or class or method
- more object inspection to stack viewer, e.g. to view all array items
- insert the initial current directory into sys.path DONE
- default directory attribute for each window instead of only for windows
that have an associated filename
- command expansion from keywords, module contents, other buffers, etc.
- "Recent documents" menu item DONE
- Filter region command
- Optional horizontal scroll bar
- more Emacsisms:
- ^K should cut to buffer
- M-[, M-] to move by paragraphs
- incremental search?
- search should indicate wrap-around in some way
- restructure state sensitive code to avoid testing flags all the time
- persistent user state (e.g. window and cursor positions, bindings)
- make backups when saving
- check file mtimes at various points
- Pluggable interface with RCS/CVS/Perforce/Clearcase
- better help?
- don't open second class browser on same module (nor second path browser)
- unify class and path browsers
- Need to define a standard way whereby one can determine one is running
inside IDLE (needed for Tk mainloop, also handy for $PYTHONSTARTUP)
- Add more utility methods for use by extensions (a la get_selection)
- Way to run command in totally separate interpreter (fork+os.system?) DONE
- Way to find definition of fully-qualified name:
In other words, select "UserDict.UserDict", hit some magic key and
it loads up UserDict.py and finds the first def or class for UserDict.
- need a way to force colorization on/off
- need a way to force auto-indent on/off
Details:
- ^O (on Unix -- open-line) should honor autoindent
- after paste, show end of pasted text
- on Windows, should turn short filename to long filename (not only in argv!)
(shouldn't this be done -- or undone -- by ntpath.normpath?)
- new autoindent after colon even indents when the colon is in a comment!
- sometimes forward slashes in pathname remain
- sometimes star in window name remains in Windows menu