Provided by: nuitka_0.6.19.1+ds-1_all 
NAME
nuitka - the Python compiler
SYNOPSIS
nuitka [--module] [--run] [options] main_module.py
OPTIONS
--version
show program's version number and exit
-h, --help
show this help message and exit
--module
Create an extension module executable instead of a program. Defaults to off.
--standalone
Enable standalone mode for output. This allows you to transfer the created binary
to other machines without it using an existing Python installation. This also means
it will become big. It implies these option: "--follow-imports". You may also want
to use "--python-flag=no_site" to avoid the "site.py" module, which can save a lot
of code dependencies. Defaults to off.
--onefile
On top of standalone mode, enable onefile mode. This means not a folder, but a
compressed executable is created and used. Defaults to off.
--python-debug
Use debug version or not. Default uses what you are using to run Nuitka, most
likely a non-debug version.
--python-flag=FLAG
Python flags to use. Default is what you are using to run Nuitka, this enforces a
specific mode. These are options that also exist to standard Python executable.
Currently supported: "-S" (alias "no_site"), "static_hashes" (do not use hash
randomization), "no_warnings" (do not give Python runtime warnings), "-O" (alias
"no_asserts"), "no_docstrings" (do not use docstrings), and "-m". Default empty.
--python-for-scons=PATH
If using Python3.3 or Python3.4, provide the path of a Python binary to use for
Scons. Otherwise Nuitka can use what you run Nuitka with or a "scons" binary that
is found in PATH, or a Python installation from Windows registry.
--warn-implicit-exceptions
Enable warnings for implicit exceptions detected at compile time.
--warn-unusual-code
Enable warnings for unusual code detected at compile time.
--assume-yes-for-downloads
Allow Nuitka to download external code if necessary, e.g. dependency walker,
ccache, and even gcc on Windows. To disable, redirect input from nul device, e.g.
"</dev/null" or "<NUL:". Default is to prompt.
Control the inclusion of modules and packages in result.:
--include-package=PACKAGE
Include a whole package. Give as a Python namespace, e.g.
"some_package.sub_package" and Nuitka will then find it and include it and all the
modules found below that disk location in the binary or extension module it
creates, and make it available for import by the code. To avoid unwanted sub
packages, e.g. tests you can e.g. do this "--nofollow-import-to=*.tests". Default
empty.
--include-module=MODULE
Include a single module. Give as a Python namespace, e.g.
"some_package.some_module" and Nuitka will then find it and include it in the
binary or extension module it creates, and make it available for import by the
code. Default empty.
--include-plugin-directory=MODULE/PACKAGE
Include the content of that directory, no matter if it's used by the given main
program in a visible form. Overrides all other inclusion options. Can be given
multiple times. Default empty.
--include-plugin-files=PATTERN
Include into files matching the PATTERN. Overrides all other follow options. Can be
given multiple times. Default empty.
--prefer-source-code
For already compiled extension modules, where there is both a source file and an
extension module, normally the extension module is used, but it should be better to
compile the module from available source code for best performance. If not desired,
there is --noprefer-source-code to disable warnings about it. Default off.
Control the following into imported modules:
--follow-stdlib
Also descend into imported modules from standard library. This will increase the
compilation time by a lot. Defaults to off.
--nofollow-imports
When --nofollow-imports is used, do not descend into any imported modules at all,
overrides all other inclusion options. Defaults to off.
--follow-imports
When --follow-imports is used, attempt to descend into all imported modules.
Defaults to off.
--follow-import-to=MODULE/PACKAGE
Follow to that module if used, or if a package, to the whole package. Can be given
multiple times. Default empty.
--nofollow-import-to=MODULE/PACKAGE
Do not follow to that module name even if used, or if a package name, to the whole
package in any case, overrides all other options. Can be given multiple times.
Default empty.
Data files for standalone/onefile mode:
--include-package-data=PACKAGE
Include data files of the given package name. Can use patterns. By default Nuitka
does not unless hard coded and vital for operation of a package. This will include
all non-DLL, non-extension modules in the distribution. Default empty.
--include-data-file=DESC
Include data files by filenames in the distribution. There are many allowed forms.
With '--include-datafile=/path/to/file/*.txt=folder_name/some.txt' it will copy a
single file and complain if it's multiple. With
'--include-datafile=/path/to/files/*.txt=folder_name/' it will put all matching
files into that folder. For recursive copy there is a form with 3 values that
'--includedata-file=/path/to/scan=folder_name=**/*.txt' that will preserve
directory structure. Default empty.
--include-data-dir=DIRECTORY
Include data files from complete directory in the distribution. This is recursive.
Check '--includedata-file' with patterns if you want non-recursive inclusion. An
example would be '--include-datadir=/path/somedir=data/somedir' for plain copy, of
the whole directory. All files are copied, if you want to exclude files you need to
remove them beforehand. Default empty.
Immediate execution after compilation:
--run Execute immediately the created binary (or import the compiled module). Defaults to
off.
--debugger, --gdb
Execute inside a debugger, e.g. "gdb" or "lldb" to automatically get a stack trace.
Defaults to off.
--execute-with-pythonpath
When immediately executing the created binary (--execute), don't reset PYTHONPATH.
When all modules are successfully included, you ought to not need PYTHONPATH
anymore.
Dump options for internal tree:
--xml Dump the final result of optimization as XML, then exit.
Code generation choices:
--full-compat
Enforce absolute compatibility with CPython. Do not even allow minor deviations
from CPython behavior, e.g. not having better tracebacks or exception messages
which are not really incompatible, but only different. This is intended for tests
only and should not be used for normal use.
--file-reference-choice=MODE
Select what value "__file__" is going to be. With "runtime" (default for standalone
binary mode and module mode), the created binaries and modules, use the location of
themselves to deduct the value of "__file__". Included packages pretend to be in
directories below that location. This allows you to include data files in
deployments. If you merely seek acceleration, it's better for you to use the
"original" value, where the source files location will be used. With "frozen" a
notation "<frozen module_name>" is used. For compatibility reasons, the "__file__"
value will always have ".py" suffix independent of what it really is.
Output choices:
-o FILENAME
Specify how the executable should be named. For extension modules there is no
choice, also not for standalone mode and using it will be an error. This may
include path information that needs to exist though. Defaults to '<program_name>'
on this platform. .bin
--output-dir=DIRECTORY
Specify where intermediate and final output files should be put. The DIRECTORY will
be populated with C files, object files, etc. Defaults to current directory.
--remove-output
Removes the build directory after producing the module or exe file. Defaults to
off.
--no-pyi-file
Do not create a ".pyi" file for extension modules created by Nuitka. This is used
to detect implicit imports. Defaults to off.
Debug features:
--debug
Executing all self checks possible to find errors in Nuitka, do not use for
production. Defaults to off.
--unstripped
Keep debug info in the resulting object file for better debugger interaction.
Defaults to off.
--profile
Enable vmprof based profiling of time spent. Not working currently. Defaults to
off.
--internal-graph
Create graph of optimization process internals, do not use for whole programs, but
only for small test cases. Defaults to off.
--trace-execution
Traced execution output, output the line of code before executing it. Defaults to
off.
--recompile-c-only
This is not incremental compilation, but for Nuitka development only. Takes
existing files and simply compile them as C again. Allows compiling edited C files
for quick debugging changes to the generated source, e.g. to see if code is passed
by, values output, etc, Defaults to off. Depends on compiling Python source to
determine which files it should look at.
--generate-c-only
Generate only C source code, and do not compile it to binary or module. This is for
debugging and code coverage analysis that doesn't waste CPU. Defaults to off. Do
not think you can use this directly.
--experimental=FLAG
Use features declared as 'experimental'. May have no effect if no experimental
features are present in the code. Uses secret tags (check source) per experimented
feature.
--low-memory
Attempt to use less memory, by forking less C compilation jobs and using options
that use less memory. For use on embedded machines. Use this in case of out of
memory problems. Defaults to off.
Backend C compiler choice:
--clang
Enforce the use of clang. On Windows this requires a working Visual Studio version
to piggy back on. Defaults to off.
--mingw64
Enforce the use of MinGW64 on Windows. Defaults to off.
--msvc=MSVC_VERSION
Enforce the use of specific MSVC version on Windows. Allowed values are e.g.
"14.2" (MSVC 2019), specify an illegal value for a list of installed compilers, or
use "latest". Notice that only latest MSVC is really supported, and you can use
"latest" to enforce that. Defaults to MSVC on Windows being used if installed,
otherwise MinGW64.
-j N, --jobs=N
Specify the allowed number of parallel C compiler jobs. Defaults to the system CPU
count.
--lto=choice
Use link time optimizations (MSVC, gcc, clang). Allowed values are "yes", "no",
and "auto" (when it's known to work). Defaults to "auto".
--static-libpython=choice
Use static link library of Python. Allowed values are "yes", "no", and "auto" (when
it's known to work). Defaults to "auto".
--disable-ccache
Do not attempt to use ccache (gcc, clang, etc.) or clcache (MSVC, clangcl).
PGO compilation choices:
--pgo Enables C level profile guided optimization (PGO), by executing a dedicated build
first for a profiling run, and then using the result to feedback into the C
compilation. Note: This is experimental and not working with standalone modes of
Nuitka yet. Defaults to off.
--pgo-args=PGO_ARGS
Arguments to be passed in case of profile guided optimization. These are passed to
the special built executable during the PGO profiling run. Default empty.
--pgo-executable=PGO_EXECUTABLE
Command to execute when collecting profile information. Use this only, if you need
to launch it through a script that prepares it to run. Default use created program.
Tracing features:
--quiet
Disable all information outputs, but show warnings. Defaults to off.
--show-scons
Operate Scons in non-quiet mode, showing the executed commands. Defaults to off.
--show-progress
Provide progress information and statistics. Defaults to off.
--no-progressbar
Disable progress bar outputs (if tqdm is installed). Defaults to off.
--show-memory
Provide memory information and statistics. Defaults to off.
--show-modules
Provide information for included modules and DLLs Defaults to off.
--show-modules-output=PATH
Where to output --show-modules, should be a filename. Default is standard output.
--report=COMPILATION_REPORT_FILENAME
Report module inclusion in an XML output file. Default is off.
--verbose
Output details of actions taken, esp. in optimizations. Can become a lot. Defaults
to off.
--verbose-output=PATH
Where to output --verbose, should be a filename. Default is standard output.
Windows specific controls:
--windows-disable-console
When compiling for Windows, disable the console window. Defaults to off.
--windows-icon-from-ico=ICON_PATH
Add executable icon. Can be given multiple times for different resolutions or files
with multiple icons inside. In the later case, you may also suffix with #<n> where
n is an integer index starting from 1, specifying a specific icon to be included,
and all others to be ignored.
--windows-icon-from-exe=ICON_EXE_PATH
Copy executable icons from this existing executable (Windows only).
--onefile-windows-splash-screen-image=SPLASH_SCREEN_IMAGE
When compiling for Windows and onefile, show this while loading the application.
Defaults to off.
--windows-uac-admin
Request Windows User Control, to grant admin rights on execution. (Windows only).
Defaults to off.
--windows-uac-uiaccess
Request Windows User Control, to enforce running from a few folders only, remote
desktop access. (Windows only). Defaults to off.
--windows-company-name=WINDOWS_COMPANY_NAME
Name of the company to use in Windows Version information. One of file or product
version is required, when a version resource needs to be added, e.g. to specify
product name, or company name. Defaults to unused.
--windows-product-name=WINDOWS_PRODUCT_NAME
Name of the product to use in Windows Version information. Defaults to base
filename of the binary.
--windows-file-version=WINDOWS_FILE_VERSION
File version to use in Windows Version information. Must be a sequence of up to 4
numbers, e.g. 1.0.0.0, only this format is allowed. One of file or product version
is required, when a version resource needs to be added, e.g. to specify product
name, or company name. Defaults to unused.
--windows-product-version=WINDOWS_PRODUCT_VERSION
Product version to use in Windows Version information. Must be a sequence of up to
4 numbers, e.g. 1.0.0.0, only this format is allowed. One of file or product
version is required, when a version resource needs to be added, e.g. to specify
product name, or company name. Defaults to unused.
--windows-file-description=WINDOWS_FILE_DESCRIPTION
Description of the file use in Windows Version information. One of file or product
version is required, when a version resource needs to be added, e.g. to specify
product name, or company name. Defaults to nonsense.
--windows-onefile-tempdir-spec=ONEFILE_TEMPDIR_SPEC
Use this as a temporary folder. Defaults to '%TEMP%\onefile_%PID%_%TIME%', i.e.
system temporary directory.
--windows-force-stdout-spec=WINDOWS_FORCE_STDOUT_SPEC
Force standard output of the program to go to this location. Useful for programs
with disabled console and programs using the Windows Services Plugin of Nuitka.
Defaults to not active, use e.g. '%PROGRAM%.out.txt', i.e. file near your program.
--windows-force-stderr-spec=WINDOWS_FORCE_STDERR_SPEC
Force standard error of the program to go to this location. Useful for programs
with disabled console and programs using the Windows Services Plugin of Nuitka.
Defaults to not active, use e.g. '%PROGRAM%.err.txt', i.e. file near your program.
macOS specific controls:
--macos-onefile-icon=ICON_PATH
Add executable icon for binary to use. Can be given only one time. Defaults to
Python icon if available.
--macos-disable-console
When compiling for macOS, disable the console window and create a GUI application.
Defaults to off.
--macos-create-app-bundle
When compiling for macOS, create a bundle rather than a plain binary application.
Currently experimental and incomplete. Currently this is the only way to unlock
disabling of console.Defaults to off.
--macos-signed-app-name=MACOS_SIGNED_APP_NAME
Name of the application to use for macOS signing. Follow com.yourcompany.appname
naming results for best results, as these have to be globally unique, and will
grant protected API accesses.
--macos-app-name=MACOS_APP_NAME
Name of the product to use in macOS bundle information. Defaults to base filename
of the binary.
--macos-app-version=MACOS_APP_VERSION
Product version to use in macOS bundle information. Defaults to 1.0 if not given.
Linux specific controls:
--linux-onefile-icon=ICON_PATH
Add executable icon for onefile binary to use. Can be given only one time. Defaults
to Python icon if available.
Plugin control:
--enable-plugin=PLUGIN_NAME, --plugin-enable=PLUGIN_NAME
Enabled plugins. Must be plug-in names. Use --pluginlist to query the full list and
exit. Default empty.
--disable-plugin=PLUGIN_NAME, --plugin-disable=PLUGIN_NAME
Disabled plugins. Must be plug-in names. Use --pluginlist to query the full list
and exit. Default empty.
--plugin-no-detection
Plugins can detect if they might be used, and the you can disable the warning via
"--disable-plugin=pluginthat-warned", or you can use this option to disable the
mechanism entirely, which also speeds up compilation slightly of course as this
detection code is run in vain once you are certain of which plugins to use.
Defaults to off.
--plugin-list
Show list of all available plugins and exit. Defaults to off.
--user-plugin=PATH
The file name of user plugin. Can be given multiple times. Default empty.
--persist-source-changes
Write source changes to original Python files. Use with care. May need permissions,
best for use in a virtualenv to debug if plugin code changes work with standard
Python or to benefit from bloat removal even with pure Python. Default False.
Commercial: None Python: 2.7.16 (default, Oct 10 2019, 22:02:15) Flavor: Debian Python
Executable: /usr/bin/python2 OS: Linux Arch: x86_64 Distribution: Debian 10.9
EXAMPLES
Compile a Python file "some_module.py" to a module "some_module.so":
$ nuitka --module some_module.py
Compile a Python program "some_program.py" to an executable "some_program.exe":
$ nuitka some_program.py
Compile a Python program "some_program.py" and the package "some_package" it uses to an
executable "some_program.exe":
$ nuitka --recurse-to=some_package some_program.py
Compile a Python program "some_program.py" and all the modules it uses to an executable
"some_program.exe". Then execute it immediately when ready:
$ nuitka --run --recurse-all some_program.py
Compile a Python program "some_program.py" and the modules it uses (even standard library)
to an executable "some_program.exe":
$ nuitka --recurse-all --recurse-stdlib some_program.py
Compile a Python program "some_program.py" and the modules it uses to an executable
"some_program.exe". Keep the debug information, so valgrind, gdb, etc. work nicely.
Note: This will *not* degrade performance:
$ nuitka --unstriped --recurse-all some_program.py
Compile a Python program "some_program.py" and the modules it uses to an executable
"some_program.exe". Perform all kinds of checks about correctness of the generated C and
run-time checks.
Note: This will degrade performance and should only be used to debug Nuitka:
$ nuitka --debug --recurse-all some_program.py
Compile a Python program "some_program.py" and the modules it uses to an executable
"some_program.exe". Perform all kinds of checks about correctness of the generated C and
run-time checks. Also use the debug Python library, which does its own checks.
Note: This will degrade performance and should only be used to debug Nuitka:
$ nuitka --debug --python-debug --recurse-all some_program.py
Compile a Python program "some_program.py" and the plugins modules it loads at run time to
an executable "some_program.exe":
$ nuitka --recurse-all --recurse-directory=plugins_dir some_program.py