New submission from Antony Lee:
While working on #24644, I noticed that the help for python -mtrace is quite
wrong.
$ python -mtrace --help
Usage: /usr/lib/python3.4/trace.py [OPTIONS] <file> [ARGS]
Meta-options:
--help Display this help then exit.
--version Output version information then exit.
Otherwise, exactly one of the following three options must be given:
-t, --trace Print each line to sys.stdout before it is executed.
-c, --count Count the number of times each line is executed
and write the counts to <module>.cover for each
module executed, in the module's directory.
See also `--coverdir', `--file', `--no-report' below.
-l, --listfuncs Keep track of which functions are executed at least
once and write the results to sys.stdout after the
program exits.
-T, --trackcalls Keep track of caller/called pairs and write the
results to sys.stdout after the program exits.
-r, --report Generate a report from a counts file; do not execute
any code. `--file' must specify the results file to
read, which must have been created in a previous run
with `--count --file=FILE'.
<elided modifier flags>
1. Obviously, there are more than 3 options there.
2. Simple testing suggests that it is at least possible to pass both -t and -c
simultaneously. I haven't tested other combinations.
----------
components: Library (Lib)
messages: 246834
nosy: Antony.Lee
priority: normal
severity: normal
status: open
title: python -mtrace --help is wrong
versions: Python 3.5
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue24649>
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