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gh-95778: add doc missing in some places #100627

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Dec 30, 2022
Merged

gh-95778: add doc missing in some places #100627

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3497f9c
add doc missing in some places for gh-95778
merwok Dec 30, 2022
d684569
Merge branch 'main' into complete-doc-int-max-str-digits
merwok Dec 30, 2022
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9 changes: 9 additions & 0 deletions Misc/python.man
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Original file line number Diff line number Diff line change
Expand Up @@ -358,6 +358,10 @@ Set implementation-specific option. The following options are available:
-X frozen_modules=[on|off]: whether or not frozen modules should be used.
The default is "on" (or "off" if you are running a local build).

-X int_max_str_digits=number: limit the size of int<->str conversions.
This helps avoid denial of service attacks when parsing untrusted data.
The default is sys.int_info.default_max_str_digits. 0 disables.

.TP
.B \-x
Skip the first line of the source. This is intended for a DOS
Expand Down Expand Up @@ -531,6 +535,11 @@ values.

The integer must be a decimal number in the range [0,4294967295]. Specifying
the value 0 will disable hash randomization.
.IP PYTHONINTMAXSTRDIGITS
Limit the maximum digit characters in an int value
when converting from a string and when converting an int back to a str.
A value of 0 disables the limit. Conversions to or from bases 2, 4, 8,
16, and 32 are never limited.
.IP PYTHONMALLOC
Set the Python memory allocators and/or install debug hooks. The available
memory allocators are
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2 changes: 2 additions & 0 deletions Python/initconfig.c
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Expand Up @@ -180,6 +180,8 @@ static const char usage_envvars[] =
"PYTHONDEBUG : enable parser debug mode (-d)\n"
"PYTHONDONTWRITEBYTECODE : don't write .pyc files (-B)\n"
"PYTHONINSPECT : inspect interactively after running script (-i)\n"
"PYTHONINTMAXSTRDIGITS : limit max digit characters in an int value\n"
" (-X int_max_str_digits=number)\n"
"PYTHONNOUSERSITE : disable user site directory (-s)\n"
"PYTHONOPTIMIZE : enable level 1 optimizations (-O)\n"
"PYTHONUNBUFFERED : disable stdout/stderr buffering (-u)\n"
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