https://github.com/python/cpython/commit/0704166f9a9c6028314d50b493670e7862c968b3
commit: 0704166f9a9c6028314d50b493670e7862c968b3
branch: main
author: Serhiy Storchaka <[email protected]>
committer: serhiy-storchaka <[email protected]>
date: 2024-03-01T10:03:32+02:00
summary:
gh-65824: Improve the "less" prompt in pydoc (GH-116050)
Output the line number, the percentage and the help about how to get help
or quit the pager.
Inspired by the GNU man.
files:
A Misc/NEWS.d/next/Library/2024-02-28-17-04-28.gh-issue-65824.gG8KR1.rst
M Lib/pydoc.py
diff --git a/Lib/pydoc.py b/Lib/pydoc.py
index b0193b4a85164a..407c0205c7ab66 100755
--- a/Lib/pydoc.py
+++ b/Lib/pydoc.py
@@ -1685,8 +1685,17 @@ def plain(text):
def pipepager(text, cmd):
"""Page through text by feeding it to another program."""
import subprocess
+ env = os.environ.copy()
+ prompt_string = (
+ ' '
+ '?ltline %lt?L/%L.'
+ ':byte %bB?s/%s.'
+ '.'
+ '?e (END):?pB %pB\\%..'
+ ' (press h for help or q to quit)')
+ env['LESS'] = '-RmPm{0}$PM{0}$'.format(prompt_string)
proc = subprocess.Popen(cmd, shell=True, stdin=subprocess.PIPE,
- errors='backslashreplace')
+ errors='backslashreplace', env=env)
try:
with proc.stdin as pipe:
try:
diff --git
a/Misc/NEWS.d/next/Library/2024-02-28-17-04-28.gh-issue-65824.gG8KR1.rst
b/Misc/NEWS.d/next/Library/2024-02-28-17-04-28.gh-issue-65824.gG8KR1.rst
new file mode 100644
index 00000000000000..7bc6ced120a7be
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2024-02-28-17-04-28.gh-issue-65824.gG8KR1.rst
@@ -0,0 +1 @@
+Improve the ``less`` prompt in :mod:`pydoc`.
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