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Python manpage diff
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--- before.html 2025-04-09 19:57:53.096198799 -0400 | |
+++ after.html 2025-04-09 19:57:32.720030706 -0400 | |
@@ -1,5 +1,5 @@ | |
<!-- Creator : groff version 1.23.0 --> | |
-<!-- CreationDate: Wed Apr 9 19:57:53 2025 --> | |
+<!-- CreationDate: Wed Apr 9 19:57:32 2025 --> | |
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" | |
"http://www.w3.org/TR/html4/loose.dtd"> | |
<html> | |
@@ -167,7 +167,8 @@ | |
PYTHONHOME that modify the behavior of the interpreter.</p></td></tr> | |
</table> | |
-<p style="margin-left:9%;"><b>-h , -? , --help</b></p> | |
+<p style="margin-left:9%;"><b>-h</b>, <b>-?</b>, | |
+<b>--help</b></p> | |
<p style="margin-left:18%;">Prints the usage for the | |
interpreter executable and exits.</p> | |
@@ -354,7 +355,7 @@ | |
provides information on module cleanup at exit.</p></td></tr> | |
</table> | |
-<p style="margin-left:9%;"><b>-V , --version</b></p> | |
+<p style="margin-left:9%;"><b>-V</b>, <b>--version</b></p> | |
<p style="margin-left:18%;">Prints the Python version | |
number of the executable and exits. When given twice, print | |
@@ -383,11 +384,11 @@ | |
<p style="margin-left:18%; margin-top: 1em">The action | |
names can be abbreviated as desired and the interpreter will | |
resolve them to the appropriate action name. For example, | |
-<b>-Wi</b> is the same as <b>-Wignore .</b></p> | |
+<b>-Wi</b> is the same as <b>-Wignore</b>.</p> | |
<p style="margin-left:18%; margin-top: 1em">The full form | |
of argument is: | |
-<i>action:message:category:module:lineno</i></p> | |
+<i>action</i><b>:</b><i>message</i><b>:</b><i>category</i><b>:</b><i>module</i><b>:</b><i>lineno</i></p> | |
<p style="margin-left:18%; margin-top: 1em">Empty fields | |
match all values; trailing empty fields may be omitted. For | |
@@ -434,10 +435,8 @@ | |
<p style="margin-left:9%;"><b>-X</b> <i>option</i></p> | |
<p style="margin-left:18%;">Set implementation-specific | |
-option. The following options are available:</p> | |
- | |
-<p style="margin-left:18%; margin-top: 1em"><b>-X | |
-cpu_count=</b><i>N</i>: override the return value of | |
+option. The following options are available: <b><br> | |
+-X cpu_count=</b><i>N</i>: override the return value of | |
<i>os.cpu_count()</i>; <b><br> | |
-X cpu_count=default</b> cancels overriding; also | |
<b>PYTHON_CPU_COUNT</b></p> | |
@@ -601,7 +600,7 @@ | |
to be able to access it). If no script name is given, | |
<i>sys.argv[0]</i> is an empty string; if <b>-c</b> is used, | |
<i>sys.argv[0]</i> contains the string | |
-<i>’-c’.</i> Note that options interpreted by | |
+’<i>-c</i>’ . Note that options interpreted by | |
the Python interpreter itself are not placed in | |
<i>sys.argv</i>.</p> | |
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--- before.txt 2025-04-09 19:57:49.532169284 -0400 | |
+++ after.txt 2025-04-09 19:57:42.992115249 -0400 | |
@@ -54,7 +54,7 @@ | |
--EE Ignore environment variables like PYTHONPATH and PYTHONHOME that | |
modify the behavior of the interpreter. | |
- --hh ,, --?? ,, ----hheellpp | |
+ --hh, --??, ----hheellpp | |
Prints the usage for the interpreter executable and exits. | |
----hheellpp--eennvv | |
@@ -119,7 +119,7 @@ | |
for when searching for a module. Also provides information on | |
module cleanup at exit. | |
- --VV ,, ----vveerrssiioonn | |
+ --VV, ----vveerrssiioonn | |
Prints the Python version number of the executable and exits. | |
When given twice, print more information about the build. | |
@@ -142,10 +142,10 @@ | |
The action names can be abbreviated as desired and the inter- | |
preter will resolve them to the appropriate action name. For ex- | |
- ample, --WWii is the same as --WWiiggnnoorree .. | |
+ ample, --WWii is the same as --WWiiggnnoorree. | |
- The full form of argument is: _a_c_t_i_o_n_:_m_e_s_s_a_g_e_:_c_a_t_e_g_o_r_y_:_m_o_d_- | |
- _u_l_e_:_l_i_n_e_n_o | |
+ The full form of argument is: _a_c_t_i_o_n::_m_e_s_s_a_g_e::_c_a_t_e_g_o_r_y::_m_o_d_- | |
+ _u_l_e::_l_i_n_e_n_o | |
Empty fields match all values; trailing empty fields may be | |
omitted. For example --WW iiggnnoorree::::DDeepprreeccaattiioonnWWaarrnniinngg ignores all | |
@@ -184,36 +184,26 @@ | |
--XX _o_p_t_i_o_n | |
Set implementation-specific option. The following options are | |
available: | |
- | |
--XX ccppuu__ccoouunntt==_N: override the return value of _o_s_._c_p_u___c_o_u_n_t_(_); | |
- --XX ccppuu__ccoouunntt==ddeeffaauulltt cancels overriding; also | |
- PPYYTTHHOONN__CCPPUU__CCOOUUNNTT | |
+ --XX ccppuu__ccoouunntt==ddeeffaauulltt cancels overriding; also PPYYTTHHOONN__CCPPUU__CCOOUUNNTT | |
- --XX ddeevv: enable CPython's "development mode", introducing ad- | |
- ditional | |
- runtime checks which are too expensive to be enabled by | |
- default. It | |
- will not be more verbose than the default if the code is | |
- correct: new | |
- warnings are only emitted when an issue is detected. Ef- | |
- fect of the | |
+ --XX ddeevv: enable CPython's "development mode", introducing additional | |
+ runtime checks which are too expensive to be enabled by default. It | |
+ will not be more verbose than the default if the code is correct: new | |
+ warnings are only emitted when an issue is detected. Effect of the | |
developer mode: | |
* Add default warning filter, as --WW ddeeffaauulltt | |
* Install debug hooks on memory allocators: see the | |
PyMem_SetupDebugHooks() C function | |
- * Enable the faulthandler module to dump the Python | |
- traceback on a | |
+ * Enable the faulthandler module to dump the Python traceback on a | |
crash | |
* Enable asyncio debug mode | |
* Set the dev_mode attribute of sys.flags to True | |
* io.IOBase destructor logs close() exceptions | |
- --XX iimmppoorrttttiimmee: show how long each import takes. It shows | |
- module name, | |
- cumulative time (including nested imports) and self time | |
- (excluding | |
- nested imports). Note that its output may be broken in | |
- multi-threaded | |
+ --XX iimmppoorrttttiimmee: show how long each import takes. It shows module name, | |
+ cumulative time (including nested imports) and self time (excluding | |
+ nested imports). Note that its output may be broken in multi-threaded | |
application. Typical usage is | |
ppyytthhoonn33 --XX iimmppoorrttttiimmee --cc ''iimmppoorrtt aassyynncciioo'' | |
@@ -221,71 +211,49 @@ | |
--XX ffrroozzeenn__mmoodduulleess==[oonn|ooffff]: whether or not frozen modules | |
should be used. | |
- The default is "on" (or "off" if you are running a local | |
- build). | |
+ The default is "on" (or "off" if you are running a local build). | |
--XX ggiill==[00|11]: enable (1) or disable (0) the GIL; also | |
PPYYTTHHOONN__GGIILL | |
Only available in builds configured with ----ddiissaabbllee--ggiill. | |
- --XX iinntt__mmaaxx__ssttrr__ddiiggiittss==_n_u_m_b_e_r: 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. | |
- | |
- --XX nnoo__ddeebbuugg__rraannggeess: disable the inclusion of the tables map- | |
- ping extra | |
- location information (end line, start column offset and | |
- end column | |
- offset) to every instruction in code objects. This is | |
- useful when | |
- smaller code objects and pyc files are desired as well as | |
- suppressing | |
- the extra visual location indicators when the interpreter | |
- displays | |
+ --XX iinntt__mmaaxx__ssttrr__ddiiggiittss==_n_u_m_b_e_r: 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. | |
+ | |
+ --XX nnoo__ddeebbuugg__rraannggeess: disable the inclusion of the tables mapping extra | |
+ location information (end line, start column offset and end column | |
+ offset) to every instruction in code objects. This is useful when | |
+ smaller code objects and pyc files are desired as well as suppressing | |
+ the extra visual location indicators when the interpreter displays | |
tracebacks. | |
- --XX ppeerrff: support the Linux "perf" profiler; also PPYYTTHHOONNPPEERRFF-- | |
- SSUUPPPPOORRTT==11 | |
+ --XX ppeerrff: support the Linux "perf" profiler; also PPYYTTHHOONNPPEERRFFSSUUPPPPOORRTT==11 | |
- --XX ppeerrff__jjiitt: support the Linux "perf" profiler with DWARF | |
- support; | |
+ --XX ppeerrff__jjiitt: support the Linux "perf" profiler with DWARF support; | |
also PPYYTTHHOONN__PPEERRFF__JJIITT__SSUUPPPPOORRTT==11 | |
- --XX pprreessiittee==_M_O_D: import this module before site; also | |
- PPYYTTHHOONN__PPRREESSIITTEE | |
+ --XX pprreessiittee==_M_O_D: import this module before site; also PPYYTTHHOONN__PPRREESSIITTEE | |
This only works on debug builds. | |
- --XX ppyyccaacchhee__pprreeffiixx==_P_A_T_H: enable writing .pyc files to a par- | |
- allel | |
- tree rooted at the given directory instead of to the code | |
- tree. | |
- | |
- --XX sshhoowwrreeffccoouunntt: output the total reference count and number | |
- of used | |
- memory blocks when the program finishes or after each | |
- statement in the | |
+ --XX ppyyccaacchhee__pprreeffiixx==_P_A_T_H: enable writing .pyc files to a parallel | |
+ tree rooted at the given directory instead of to the code tree. | |
+ | |
+ --XX sshhoowwrreeffccoouunntt: output the total reference count and number of used | |
+ memory blocks when the program finishes or after each statement in the | |
interactive interpreter. This only works on debug builds | |
- --XX ttrraacceemmaalllloocc: start tracing Python memory allocations us- | |
- ing the | |
- tracemalloc module. By default, only the most recent | |
- frame is stored in a | |
- traceback of a trace. Use -X tracemalloc=NFRAME to start | |
- tracing with a | |
+ --XX ttrraacceemmaalllloocc: start tracing Python memory allocations using the | |
+ tracemalloc module. By default, only the most recent frame is stored in a | |
+ traceback of a trace. Use -X tracemalloc=NFRAME to start tracing with a | |
traceback limit of NFRAME frames | |
--XX uuttff88: enable UTF-8 mode for operating system interfaces, | |
- overriding the default locale-aware mode. --XX uuttff88==00 ex- | |
- plicitly | |
- disables UTF-8 mode (even when it would otherwise acti- | |
- vate | |
+ overriding the default locale-aware mode. --XX uuttff88==00 explicitly | |
+ disables UTF-8 mode (even when it would otherwise activate | |
automatically). See PPYYTTHHOONNUUTTFF88 for more details | |
- --XX wwaarrnn__ddeeffaauulltt__eennccooddiinngg: enable opt-in EncodingWarning for | |
- 'encoding=None' | |
+ --XX wwaarrnn__ddeeffaauulltt__eennccooddiinngg: enable opt-in EncodingWarning for 'encoding=None' | |
--xx Skip the first line of the source. This is intended for a DOS | |
@@ -307,24 +275,24 @@ | |
passed to the script in the Python variable _s_y_s_._a_r_g_v, which is a list | |
of strings (you must first _i_m_p_o_r_t _s_y_s to be able to access it). If no | |
script name is given, _s_y_s_._a_r_g_v_[_0_] is an empty string; if --cc is used, | |
- _s_y_s_._a_r_g_v_[_0_] contains the string _'_-_c_'_. Note that options interpreted by | |
- the Python interpreter itself are not placed in _s_y_s_._a_r_g_v. | |
+ _s_y_s_._a_r_g_v_[_0_] contains the string '_-_c' . Note that options interpreted | |
+ by the Python interpreter itself are not placed in _s_y_s_._a_r_g_v. | |
- In interactive mode, the primary prompt is `>>>'; the second prompt | |
- (which appears when a command is not complete) is `...'. The prompts | |
- can be changed by assignment to _s_y_s_._p_s_1 or _s_y_s_._p_s_2. The interpreter | |
- quits when it reads an EOF at a prompt. When an unhandled exception | |
- occurs, a stack trace is printed and control returns to the primary | |
- prompt; in non-interactive mode, the interpreter exits after printing | |
+ In interactive mode, the primary prompt is `>>>'; the second prompt | |
+ (which appears when a command is not complete) is `...'. The prompts | |
+ can be changed by assignment to _s_y_s_._p_s_1 or _s_y_s_._p_s_2. The interpreter | |
+ quits when it reads an EOF at a prompt. When an unhandled exception | |
+ occurs, a stack trace is printed and control returns to the primary | |
+ prompt; in non-interactive mode, the interpreter exits after printing | |
the stack trace. The interrupt signal raises the _K_e_y_b_o_a_r_d_I_n_t_e_r_r_u_p_t ex- | |
- ception; other UNIX signals are not caught (except that SIGPIPE is | |
- sometimes ignored, in favor of the _I_O_E_r_r_o_r exception). Error messages | |
+ ception; other UNIX signals are not caught (except that SIGPIPE is | |
+ sometimes ignored, in favor of the _I_O_E_r_r_o_r exception). Error messages | |
are written to stderr. | |
FFIILLEESS AANNDD DDIIRREECCTTOORRIIEESS | |
These are subject to difference depending on local installation conven- | |
- tions; ${prefix} and ${exec_prefix} are installation-dependent and | |
- should be interpreted as for GNU software; they may be the same. The | |
+ tions; ${prefix} and ${exec_prefix} are installation-dependent and | |
+ should be interpreted as for GNU software; they may be the same. The | |
default for both is _/_u_s_r_/_l_o_c_a_l. | |
_$_{_e_x_e_c___p_r_e_f_i_x_}_/_b_i_n_/_p_y_t_h_o_n | |
@@ -337,29 +305,29 @@ | |
_$_{_p_r_e_f_i_x_}_/_i_n_c_l_u_d_e_/_p_y_t_h_o_n_<_v_e_r_s_i_o_n_> | |
_$_{_e_x_e_c___p_r_e_f_i_x_}_/_i_n_c_l_u_d_e_/_p_y_t_h_o_n_<_v_e_r_s_i_o_n_> | |
- Recommended locations of the directories containing the include | |
- files needed for developing Python extensions and embedding the | |
+ Recommended locations of the directories containing the include | |
+ files needed for developing Python extensions and embedding the | |
interpreter. | |
EENNVVIIRROONNMMEENNTT VVAARRIIAABBLLEESS | |
PYTHONASYNCIODEBUG | |
- If this environment variable is set to a non-empty string, en- | |
+ If this environment variable is set to a non-empty string, en- | |
able the debug mode of the asyncio module. | |
PYTHON_BASIC_REPL | |
- If this variable is set to any value, the interpreter will not | |
- attempt to load the Python-based REPL that requires curses and | |
- readline, and will instead use the traditional parser-based | |
+ If this variable is set to any value, the interpreter will not | |
+ attempt to load the Python-based REPL that requires curses and | |
+ readline, and will instead use the traditional parser-based | |
REPL. | |
PYTHONBREAKPOINT | |
- If this environment variable is set to 0, it disables the de- | |
- fault debugger. It can be set to the callable of your debugger | |
+ If this environment variable is set to 0, it disables the de- | |
+ fault debugger. It can be set to the callable of your debugger | |
of choice. | |
PYTHONCOERCECLOCALE | |
- If set to the value 0, causes the main Python command line ap- | |
- plication to skip coercing the legacy ASCII-based C and POSIX | |
+ If set to the value 0, causes the main Python command line ap- | |
+ plication to skip coercing the legacy ASCII-based C and POSIX | |
locales to a more capable UTF-8 based alternative. | |
PYTHON_COLORS | |
@@ -367,108 +335,108 @@ | |
ious kinds of output. Setting it to 0 deactivates this behavior. | |
PYTHON_CPU_COUNT | |
- If this variable is set to a positive integer, it overrides the | |
+ If this variable is set to a positive integer, it overrides the | |
return values of _o_s_._c_p_u___c_o_u_n_t and _o_s_._p_r_o_c_e_s_s___c_p_u___c_o_u_n_t. | |
See also the --XX ccppuu__ccoouunntt option. | |
PYTHONDEBUG | |
- If this is set to a non-empty string it is equivalent to speci- | |
- fying the --dd option. If set to an integer, it is equivalent to | |
+ If this is set to a non-empty string it is equivalent to speci- | |
+ fying the --dd option. If set to an integer, it is equivalent to | |
specifying --dd multiple times. | |
PYTHONEXECUTABLE | |
- If this environment variable is set, _s_y_s_._a_r_g_v_[_0_] will be set to | |
- its value instead of the value got through the C runtime. Only | |
+ If this environment variable is set, _s_y_s_._a_r_g_v_[_0_] will be set to | |
+ its value instead of the value got through the C runtime. Only | |
works on Mac OS X. | |
PYTHONFAULTHANDLER | |
- If this environment variable is set to a non-empty string, | |
- _f_a_u_l_t_h_a_n_d_l_e_r_._e_n_a_b_l_e_(_) is called at startup: install a handler | |
- for SIGSEGV, SIGFPE, SIGABRT, SIGBUS and SIGILL signals to dump | |
+ If this environment variable is set to a non-empty string, | |
+ _f_a_u_l_t_h_a_n_d_l_e_r_._e_n_a_b_l_e_(_) is called at startup: install a handler | |
+ for SIGSEGV, SIGFPE, SIGABRT, SIGBUS and SIGILL signals to dump | |
the Python traceback. | |
This is equivalent to the --XX ffaauulltthhaannddlleerr option. | |
PYTHON_FROZEN_MODULES | |
- If this variable is set to oonn or ooffff, it determines whether or | |
+ If this variable is set to oonn or ooffff, it determines whether or | |
not frozen modules are ignored by the import machinery. A value | |
- of oonn means they get imported and ooffff means they are ignored. | |
+ of oonn means they get imported and ooffff means they are ignored. | |
The default is oonn for non-debug builds (the normal case) and ooffff | |
for debug builds. | |
See also the --XX ffrroozzeenn__mmoodduulleess option. | |
PYTHON_GIL | |
- If this variable is set to 1, the global interpreter lock (GIL) | |
- will be forced on. Setting it to 0 forces the GIL off. Only | |
+ If this variable is set to 1, the global interpreter lock (GIL) | |
+ will be forced on. Setting it to 0 forces the GIL off. Only | |
available in builds configured with ----ddiissaabbllee--ggiill. | |
PYTHON_HISTORY | |
- This environment variable can be used to set the location of a | |
+ This environment variable can be used to set the location of a | |
history file (on Unix, it is _~_/_._p_y_t_h_o_n___h_i_s_t_o_r_y by default). | |
This is equivalent to the --XX ggiill option. | |
PYTHONNODEBUGRANGES | |
If this variable is set, it disables the inclusion of the tables | |
- mapping extra location information (end line, start column off- | |
+ mapping extra location information (end line, start column off- | |
set and end column offset) to every instruction in code objects. | |
- This is useful when smaller code objects and pyc files are de- | |
- sired as well as suppressing the extra visual location indica- | |
+ This is useful when smaller code objects and pyc files are de- | |
+ sired as well as suppressing the extra visual location indica- | |
tors when the interpreter displays tracebacks. | |
PYTHONDONTWRITEBYTECODE | |
- If this is set to a non-empty string it is equivalent to speci- | |
+ If this is set to a non-empty string it is equivalent to speci- | |
fying the --BB option (don't try to write _._p_y_c files). | |
PYTHONDEVMODE | |
- If this environment variable is set to a non-empty string, en- | |
+ If this environment variable is set to a non-empty string, en- | |
able Python's "development mode", introducing additional runtime | |
checks that are too expensive to be enabled by default. | |
This is equivalent to the --XX ddeevv option. | |
PYTHONHASHSEED | |
- If this variable is set to "random", a random value is used to | |
+ If this variable is set to "random", a random value is used to | |
seed the hashes of str and bytes objects. | |
- If PYTHONHASHSEED is set to an integer value, it is used as a | |
+ If PYTHONHASHSEED is set to an integer value, it is used as a | |
fixed seed for generating the hash() of the types covered by the | |
hash randomization. Its purpose is to allow repeatable hashing, | |
- such as for selftests for the interpreter itself, or to allow a | |
+ such as for selftests for the interpreter itself, or to allow a | |
cluster of python processes to share hash values. | |
- The integer must be a decimal number in the range | |
- [0,4294967295]. Specifying the value 0 will disable hash ran- | |
+ The integer must be a decimal number in the range | |
+ [0,4294967295]. Specifying the value 0 will disable hash ran- | |
domization. | |
PYTHONHOME | |
- Change the location of the standard Python libraries. By de- | |
- fault, the libraries are searched in ${prefix}/lib/python<ver- | |
- sion> and ${exec_prefix}/lib/python<version>, where ${prefix} | |
- and ${exec_prefix} are installation-dependent directories, both | |
- defaulting to _/_u_s_r_/_l_o_c_a_l. When $PYTHONHOME is set to a single | |
+ Change the location of the standard Python libraries. By de- | |
+ fault, the libraries are searched in ${prefix}/lib/python<ver- | |
+ sion> and ${exec_prefix}/lib/python<version>, where ${prefix} | |
+ and ${exec_prefix} are installation-dependent directories, both | |
+ defaulting to _/_u_s_r_/_l_o_c_a_l. When $PYTHONHOME is set to a single | |
directory, its value replaces both ${prefix} and ${exec_prefix}. | |
To specify different values for these, set $PYTHONHOME to ${pre- | |
fix}:${exec_prefix}. | |
PYTHONINSPECT | |
- If this is set to a non-empty string it is equivalent to speci- | |
+ If this is set to a non-empty string it is equivalent to speci- | |
fying the --ii option. | |
PYTHONINTMAXSTRDIGITS | |
Limit the maximum digit characters in an int value when convert- | |
- ing 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, | |
+ ing 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. | |
This is equivalent to the --XX iinntt__mmaaxx__ssttrr__ddiiggiittss==_N_U_M_B_E_R option. | |
PYTHONIOENCODING | |
- If this is set before running the interpreter, it overrides the | |
- encoding used for stdin/stdout/stderr, in the syntax _e_n_c_o_d_i_n_g_- | |
- _n_a_m_e::_e_r_r_o_r_h_a_n_d_l_e_r The _e_r_r_o_r_h_a_n_d_l_e_r part is optional and has the | |
+ If this is set before running the interpreter, it overrides the | |
+ encoding used for stdin/stdout/stderr, in the syntax _e_n_c_o_d_i_n_g_- | |
+ _n_a_m_e::_e_r_r_o_r_h_a_n_d_l_e_r The _e_r_r_o_r_h_a_n_d_l_e_r part is optional and has the | |
same meaning as in str.encode. For stderr, the _e_r_r_o_r_h_a_n_d_l_e_r part | |
is ignored; the handler will always be 'backslashreplace'. | |
@@ -477,51 +445,51 @@ | |
available memory allocators are _m_a_l_l_o_c and _p_y_m_a_l_l_o_c. The avail- | |
able debug hooks are _d_e_b_u_g, _m_a_l_l_o_c___d_e_b_u_g, and _p_y_m_a_l_l_o_c___d_e_b_u_g. | |
- When Python is compiled in debug mode, the default is _p_y_m_a_l_- | |
+ When Python is compiled in debug mode, the default is _p_y_m_a_l_- | |
_l_o_c___d_e_b_u_g and the debug hooks are automatically used. Otherwise, | |
the default is _p_y_m_a_l_l_o_c. | |
PYTHONMALLOCSTATS | |
- If set to a non-empty string, Python will print statistics of | |
- the pymalloc memory allocator every time a new pymalloc object | |
+ If set to a non-empty string, Python will print statistics of | |
+ the pymalloc memory allocator every time a new pymalloc object | |
arena is created, and on shutdown. | |
- This variable is ignored if the $PPYYTTHHOONNMMAALLLLOOCC environment vari- | |
- able is used to force the mmaalllloocc(3) allocator of the C library, | |
+ This variable is ignored if the $PPYYTTHHOONNMMAALLLLOOCC environment vari- | |
+ able is used to force the mmaalllloocc(3) allocator of the C library, | |
or if Python is configured without pymalloc support. | |
PYTHONNOUSERSITE | |
- If this is set to a non-empty string it is equivalent to speci- | |
- fying the --ss option (Don't add the user site directory to | |
+ If this is set to a non-empty string it is equivalent to speci- | |
+ fying the --ss option (Don't add the user site directory to | |
sys.path). | |
PYTHONOPTIMIZE | |
- If this is set to a non-empty string it is equivalent to speci- | |
- fying the --OO option. If set to an integer, it is equivalent to | |
+ If this is set to a non-empty string it is equivalent to speci- | |
+ fying the --OO option. If set to an integer, it is equivalent to | |
specifying --OO multiple times. | |
PYTHONPATH | |
- Augments the default search path for module files. The format | |
- is the same as the shell's $PATH: one or more directory path- | |
- names separated by colons. Non-existent directories are | |
- silently ignored. The default search path is installation de- | |
+ Augments the default search path for module files. The format | |
+ is the same as the shell's $PATH: one or more directory path- | |
+ names separated by colons. Non-existent directories are | |
+ silently ignored. The default search path is installation de- | |
pendent, but generally begins with ${prefix}/lib/python<version> | |
- (see PYTHONHOME above). The default search path is always ap- | |
- pended to $PYTHONPATH. If a script argument is given, the di- | |
- rectory containing the script is inserted in the path in front | |
- of $PYTHONPATH. The search path can be manipulated from within | |
+ (see PYTHONHOME above). The default search path is always ap- | |
+ pended to $PYTHONPATH. If a script argument is given, the di- | |
+ rectory containing the script is inserted in the path in front | |
+ of $PYTHONPATH. The search path can be manipulated from within | |
a Python program as the variable _s_y_s_._p_a_t_h. | |
PYTHON_PERF_JIT_SUPPORT | |
- If this variable is set to a nonzero value, it enables support | |
- for the Linux perf profiler so Python calls can be detected by | |
+ If this variable is set to a nonzero value, it enables support | |
+ for the Linux perf profiler so Python calls can be detected by | |
it using DWARF information. Setting to 0 disables. | |
See also the --XX ppeerrff__jjiitt option. | |
PYTHONPERFSUPPORT | |
- If this variable is set to a nonzero value, it enables support | |
- for the Linux perf profiler so Python calls can be detected by | |
+ If this variable is set to a nonzero value, it enables support | |
+ for the Linux perf profiler so Python calls can be detected by | |
it. Setting to 0 disables. | |
See also the --XX ppeerrff option. | |
@@ -530,31 +498,31 @@ | |
Override sys.platlibdir. | |
PYTHONPROFILEIMPORTTIME | |
- If this environment variable is set to a non-empty string, | |
- Python will show how long each import takes. This is exactly | |
+ If this environment variable is set to a non-empty string, | |
+ Python will show how long each import takes. This is exactly | |
equivalent to setting --XX iimmppoorrttttiimmee on the command line. | |
PYTHONPYCACHEPREFIX | |
- If this is set, Python will write ..ppyycc files in a mirror direc- | |
- tory tree at this path, instead of in ____ppyyccaacchhee____ directories | |
+ If this is set, Python will write ..ppyycc files in a mirror direc- | |
+ tory tree at this path, instead of in ____ppyyccaacchhee____ directories | |
within the source tree. | |
- This is equivalent to specifying the --XX ppyyccaacchhee__pprreeffiixx==_P_A_T_H op- | |
+ This is equivalent to specifying the --XX ppyyccaacchhee__pprreeffiixx==_P_A_T_H op- | |
tion. | |
PYTHONSAFEPATH | |
- If this is set to a non-empty string, don't automatically | |
- prepend a potentially unsafe path to ssyyss..ppaatthh such as the cur- | |
- rent directory, the script's directory or an empty string. See | |
+ If this is set to a non-empty string, don't automatically | |
+ prepend a potentially unsafe path to ssyyss..ppaatthh such as the cur- | |
+ rent directory, the script's directory or an empty string. See | |
also the --PP option. | |
PYTHONSTARTUP | |
- If this is the name of a readable file, the Python commands in | |
- that file are executed before the first prompt is displayed in | |
- interactive mode. The file is executed in the same name space | |
- where interactive commands are executed so that objects defined | |
- or imported in it can be used without qualification in the in- | |
- teractive session. You can also change the prompts _s_y_s_._p_s_1 and | |
+ If this is the name of a readable file, the Python commands in | |
+ that file are executed before the first prompt is displayed in | |
+ interactive mode. The file is executed in the same name space | |
+ where interactive commands are executed so that objects defined | |
+ or imported in it can be used without qualification in the in- | |
+ teractive session. You can also change the prompts _s_y_s_._p_s_1 and | |
_s_y_s_._p_s_2 in this file. | |
PYTHONTRACEMALLOC | |
@@ -562,54 +530,54 @@ | |
tracing Python memory allocations using the tracemalloc module. | |
The value of the variable is the maximum number of frames stored | |
- in a traceback of a trace. For example, _P_Y_T_H_O_N_T_R_A_C_E_M_A_L_L_O_C_=_1 | |
+ in a traceback of a trace. For example, _P_Y_T_H_O_N_T_R_A_C_E_M_A_L_L_O_C_=_1 | |
stores only the most recent frame. | |
PYTHONUNBUFFERED | |
- If this is set to a non-empty string it is equivalent to speci- | |
+ If this is set to a non-empty string it is equivalent to speci- | |
fying the --uu option. | |
PYTHONUSERBASE | |
- Defines the user base directory, which is used to compute the | |
- path of the user _s_i_t_e_-_p_a_c_k_a_g_e_s directory and installation paths | |
+ Defines the user base directory, which is used to compute the | |
+ path of the user _s_i_t_e_-_p_a_c_k_a_g_e_s directory and installation paths | |
for _p_y_t_h_o_n _-_m _p_i_p _i_n_s_t_a_l_l _-_-_u_s_e_r. | |
PYTHONUTF8 | |
- If set to 1, enable the Python "UTF-8 Mode". Setting to 0 dis- | |
+ If set to 1, enable the Python "UTF-8 Mode". Setting to 0 dis- | |
ables. | |
PYTHONVERBOSE | |
- If this is set to a non-empty string it is equivalent to speci- | |
- fying the --vv option. If set to an integer, it is equivalent to | |
+ If this is set to a non-empty string it is equivalent to speci- | |
+ fying the --vv option. If set to an integer, it is equivalent to | |
specifying --vv multiple times. | |
PYTHONWARNDEFAULTENCODING | |
If this environment variable is set to a non-empty string, issue | |
- a _E_n_c_o_d_i_n_g_W_a_r_n_i_n_g when the locale-specific default encoding is | |
+ a _E_n_c_o_d_i_n_g_W_a_r_n_i_n_g when the locale-specific default encoding is | |
used. | |
PYTHONWARNINGS | |
- If this is set to a comma-separated string it is equivalent to | |
+ If this is set to a comma-separated string it is equivalent to | |
specifying the --WW option for each separate value. | |
DDeebbuugg--mmooddee vvaarriiaabblleess | |
- Setting these variables only has an effect in a debug build of Python, | |
+ Setting these variables only has an effect in a debug build of Python, | |
that is, if Python was configured with the ----wwiitthh--ppyyddeebbuugg build option. | |
PYTHONDUMPREFS | |
- If this environment variable is set, Python will dump objects | |
- and reference counts still alive after shutting down the inter- | |
+ If this environment variable is set, Python will dump objects | |
+ and reference counts still alive after shutting down the inter- | |
preter. | |
PYTHONDUMPREFSFILE | |
- If set, Python will dump objects and reference counts still | |
- alive after shutting down the interpreter into a file under the | |
+ If set, Python will dump objects and reference counts still | |
+ alive after shutting down the interpreter into a file under the | |
path given as the value to this environment variable. | |
PYTHON_PRESITE | |
- If this variable is set to a module, that module will be im- | |
- ported early in the interpreter lifecycle, before the _s_i_t_e mod- | |
- ule is executed, and before the _____m_a_i_n____ module is created. | |
+ If this variable is set to a module, that module will be im- | |
+ ported early in the interpreter lifecycle, before the _s_i_t_e mod- | |
+ ule is executed, and before the _____m_a_i_n____ module is created. | |
This only works on debug builds. | |
This is equivalent to the --XX pprreessiittee==_m_o_d_u_l_e option. | |
@@ -626,9 +594,9 @@ | |
Newsgroups: comp.lang.python, comp.lang.python.announce | |
LLIICCEENNSSIINNGG | |
- Python is distributed under an Open Source license. See the file "LI- | |
- CENSE" in the Python source distribution for information on terms & | |
- conditions for accessing and otherwise using Python and for a DIS- | |
+ Python is distributed under an Open Source license. See the file "LI- | |
+ CENSE" in the Python source distribution for information on terms & | |
+ conditions for accessing and otherwise using Python and for a DIS- | |
CLAIMER OF ALL WARRANTIES. | |
_P_Y_T_H_O_N(1) |
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