Drop support for Python 3.7.

3.7 EOLs on 2023-06-27 (in two days time). Dropping it will bring CI/CD
back below the 16 concurrent jobs limit so that it finishes in 2 hours
instead of 4.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -24,7 +24,7 @@ Welcome to the PyInstaller issue tracker! Before creating an issue, please heed
 ### Context information (for bug reports)
 
 * Output of `pyinstaller --version`: ```(paste here)```
-* Version of Python: <!-- e.g. 3.7 -->
+* Version of Python: <!-- e.g. 3.11 -->
 * Platform: <!-- e.g GNU/Linux (distribution), Windows (language settings), OS X, FreeBSD -->
 * How you installed Python: <!-- e.g. python.org/downloads, conda, brew, pyenv, apt, Windows store -->
 * Did you also try this on another platform? Does it work there?

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9, '3.10', '3.11', '3.12-dev']
+        python-version: [3.8, 3.9, '3.10', '3.11', '3.12-dev']
         os: ['windows-latest', 'ubuntu-20.04', 'macos-11']
       fail-fast: false
     steps:

PyInstaller/__init__.py

@@ -42,10 +42,7 @@
             sys.stderr.write('WARN: failed to parse git revision')
 else:
     # PyInstaller was installed by `python setup.py install'.
-    if compat.is_py38:
-        from importlib.metadata import version
-    else:
-        from importlib_metadata import version
+    from importlib.metadata import version
     __version__ = version('PyInstaller')
 # Default values of paths where to put files created by PyInstaller. If changing these, do not forget to update the
 # help text for corresponding command-line options, defined in build_main.

PyInstaller/building/build_main.py

@@ -147,19 +147,18 @@ def find_binary_dependencies(binaries, binding_redirects, import_packages):
         extra_libdirs.append(compat.base_prefix)
 
     # On Windows, packages' initialization code might register additional DLL search paths, either by modifying the
-    # `PATH` environment variable, or (on pythonn >= 3.8) by calling `os.add_dll_directory`. Therefore, we import
+    # `PATH` environment variable, or by calling `os.add_dll_directory`. Therefore, we import
     # all collected packages, and track changes made to the environment.
     if compat.is_win:
         # Track changes made via `os.add_dll_directory`.
-        if compat.is_py38:
-            added_dll_directories = []
-            _orig_add_dll_directory = os.add_dll_directory
+        added_dll_directories = []
+        _orig_add_dll_directory = os.add_dll_directory
 
-            def _pyi_add_dll_directory(path):
-                added_dll_directories.append(path)
-                return _orig_add_dll_directory(path)
+        def _pyi_add_dll_directory(path):
+            added_dll_directories.append(path)
+            return _orig_add_dll_directory(path)
 
-            os.add_dll_directory = _pyi_add_dll_directory
+        os.add_dll_directory = _pyi_add_dll_directory
 
         # Import collected packages to set up environment.
         for package in import_packages:
@@ -170,12 +169,11 @@ def _pyi_add_dll_directory(path):
 
         # Process extra search paths...
         # Directories added via os.add_dll_directory() calls.
-        if compat.is_py38:
-            logger.info("Extra DLL search directories (AddDllDirectory): %r", added_dll_directories)
-            extra_libdirs += added_dll_directories
+        logger.info("Extra DLL search directories (AddDllDirectory): %r", added_dll_directories)
+        extra_libdirs += added_dll_directories
 
-            # Restore original function
-            os.add_dll_directory = _orig_add_dll_directory
+        # Restore original function
+        os.add_dll_directory = _orig_add_dll_directory
 
         # Directories set via PATH environment variable.
         # NOTE: PATH might contain empty entries that need to be filtered out.

PyInstaller/building/utils.py

@@ -652,20 +652,7 @@ def strip_paths_in_code(co, new_filename=None):
         for const_co in co.co_consts
     )
 
-    if hasattr(co, 'replace'):  # is_py38
-        return co.replace(co_consts=consts, co_filename=new_filename)
-    elif hasattr(co, 'co_kwonlyargcount'):
-        # co_kwonlyargcount was added in some version of Python 3
-        return code_func(
-            co.co_argcount, co.co_kwonlyargcount, co.co_nlocals, co.co_stacksize, co.co_flags, co.co_code, consts,
-            co.co_names, co.co_varnames, new_filename, co.co_name, co.co_firstlineno, co.co_lnotab, co.co_freevars,
-            co.co_cellvars
-        )
-    else:
-        return code_func(
-            co.co_argcount, co.co_nlocals, co.co_stacksize, co.co_flags, co.co_code, consts, co.co_names,
-            co.co_varnames, new_filename, co.co_name, co.co_firstlineno, co.co_lnotab, co.co_freevars, co.co_cellvars
-        )
+    return co.replace(co_consts=consts, co_filename=new_filename)
 
 
 def _should_include_system_binary(binary_tuple, exceptions):

PyInstaller/compat.py

@@ -83,56 +83,42 @@
 is_macos_11 = is_macos_11_compat or is_macos_11_native  # Big Sur or newer
 
 # On different platforms is different file for dynamic python library.
-# TODO: When removing support for is_py37, the "m" variants can be
-# removed, see <https://docs.python.org/3/whatsnew/3.8.html#build-and-c-api-changes>
 _pyver = sys.version_info[:2]
 if is_win or is_cygwin:
     PYDYLIB_NAMES = {
         'python%d%d.dll' % _pyver,
         'libpython%d%d.dll' % _pyver,
-        'libpython%d%dm.dll' % _pyver,
         'libpython%d.%d.dll' % _pyver,
-        'libpython%d.%dm.dll' % _pyver
     }  # For MSYS2 environment
 elif is_darwin:
     # libpython%d.%dm.dylib for Conda virtual environment installations
     PYDYLIB_NAMES = {
-        'Python', '.Python',
+        'Python',
+        '.Python',
         'Python%d' % _pyver[0],
         'libpython%d.%d.dylib' % _pyver,
-        'libpython%d.%dm.dylib' % _pyver
     }
 elif is_aix:
     # Shared libs on AIX may be archives with shared object members, hence the ".a" suffix. However, starting with
     # python 2.7.11 libpython?.?.so and Python3 libpython?.?m.so files are produced.
     PYDYLIB_NAMES = {
         'libpython%d.%d.a' % _pyver,
-        'libpython%d.%dm.a' % _pyver,
         'libpython%d.%d.so' % _pyver,
-        'libpython%d.%dm.so' % _pyver
     }
 elif is_freebsd:
     PYDYLIB_NAMES = {
         'libpython%d.%d.so.1' % _pyver,
-        'libpython%d.%dm.so.1' % _pyver,
         'libpython%d.%d.so.1.0' % _pyver,
-        'libpython%d.%dm.so.1.0' % _pyver
     }
 elif is_openbsd:
-    PYDYLIB_NAMES = {'libpython%d.%d.so.0.0' % _pyver, 'libpython%d.%dm.so.0.0' % _pyver}
+    PYDYLIB_NAMES = {'libpython%d.%d.so.0.0' % _pyver}
 elif is_hpux:
     PYDYLIB_NAMES = {'libpython%d.%d.so' % _pyver}
 elif is_unix:
     # Other *nix platforms.
     # Python 2 .so library on Linux is: libpython2.7.so.1.0
-    # Python 3 .so library on Linux is: libpython3.2mu.so.1.0, libpython3.3m.so.1.0
-    PYDYLIB_NAMES = {
-        'libpython%d.%d.so.1.0' % _pyver,
-        'libpython%d.%dm.so.1.0' % _pyver,
-        'libpython%d.%dmu.so.1.0' % _pyver,
-        'libpython%d.%dm.so' % _pyver,
-        'libpython%d.%d.so' % _pyver
-    }
+    # Python 3 .so library on Linux is: libpython3.3.so.1.0
+    PYDYLIB_NAMES = {'libpython%d.%d.so.1.0' % _pyver, 'libpython%d.%d.so' % _pyver}
 else:
     raise SystemExit('Your platform is not yet supported. Please define constant PYDYLIB_NAMES for your platform.')
 
@@ -745,16 +731,13 @@ def check_requirements():
     Fail hard if any requirement is not met.
     """
     # Fail hard if Python does not have minimum required version
-    if sys.version_info < (3, 7):
-        raise EnvironmentError('PyInstaller requires at Python 3.7 or newer.')
+    if sys.version_info < (3, 8):
+        raise EnvironmentError('PyInstaller requires Python 3.8 or newer.')
 
     # There are some old packages which used to be backports of libraries which are now part of the standard library.
     # These backports are now unmaintained and contain only an older subset of features leading to obscure errors like
     # "enum has not attribute IntFlag" if installed.
-    if is_py38:
-        from importlib.metadata import distribution, PackageNotFoundError
-    else:
-        from importlib_metadata import distribution, PackageNotFoundError
+    from importlib.metadata import distribution, PackageNotFoundError
 
     for name in ["enum34", "typing", "pathlib"]:
         try:

PyInstaller/depend/bytecode.py

@@ -91,17 +91,7 @@ def finditer(pattern: Pattern, string: bytes):
 # themselves need to be enclosed in another (non-capturing) group. E.g., "(?:(?:_OPCODES_FUNCTION_GLOBAL).)".
 # NOTE2: _OPCODES_EXTENDED_ARG2 is an exception, as it is used as a list of opcodes to exclude, i.e.,
 # "[^_OPCODES_EXTENDED_ARG2]". Therefore, multiple opcodes are not separated by the OR operator.
-if not compat.is_py37:
-    _OPCODES_EXTENDED_ARG = rb"`EXTENDED_ARG`"
-    _OPCODES_EXTENDED_ARG2 = _OPCODES_EXTENDED_ARG
-    _OPCODES_FUNCTION_GLOBAL = rb"`LOAD_NAME`|`LOAD_GLOBAL`|`LOAD_FAST`"
-    _OPCODES_FUNCTION_LOAD = rb"`LOAD_ATTR`"
-    _OPCODES_FUNCTION_ARGS = rb"`LOAD_CONST`"
-    _OPCODES_FUNCTION_CALL = rb"`CALL_FUNCTION`|`CALL_FUNCTION_EX`"
-
-    def _cleanup_bytecode_string(bytecode):
-        return bytecode  # Nothing to do here
-elif not compat.is_py311:
+if not compat.is_py311:
     # Python 3.7 introduced two new function-related opcodes, LOAD_METHOD and CALL_METHOD
     _OPCODES_EXTENDED_ARG = rb"`EXTENDED_ARG`"
     _OPCODES_EXTENDED_ARG2 = _OPCODES_EXTENDED_ARG

PyInstaller/hooks/rthooks/pyi_rth_multiprocessing.py

@@ -32,11 +32,9 @@ def _freeze_support():
         # Look for those flags and the import statement, then `exec()` the code ourselves.
 
         if (
-            len(sys.argv) >= 2 and sys.argv[-2] == '-c' and sys.argv[-1].startswith((
-                'from multiprocessing.semaphore_tracker import main',  # Py<3.8
-                'from multiprocessing.resource_tracker import main',  # Py>=3.8
-                'from multiprocessing.forkserver import main'
-            )) and set(sys.argv[1:-2]) == set(_args_from_interpreter_flags())
+            len(sys.argv) >= 2 and sys.argv[-2] == '-c' and sys.argv[-1].startswith(
+                ('from multiprocessing.resource_tracker import main', 'from multiprocessing.forkserver import main')
+            ) and set(sys.argv[1:-2]) == set(_args_from_interpreter_flags())
         ):
             exec(sys.argv[-1])
             sys.exit()

PyInstaller/lib/modulegraph/modulegraph.py

@@ -3260,20 +3260,5 @@ def _replace_paths_in_code(self, co):
 
         code_func = type(co)
 
-        if hasattr(co, 'replace'): # is_py38
-            return co.replace(co_consts=tuple(consts),
-                              co_filename=new_filename)
-        elif hasattr(co, 'co_kwonlyargcount'):
-            return code_func(
-                        co.co_argcount, co.co_kwonlyargcount, co.co_nlocals,
-                        co.co_stacksize, co.co_flags, co.co_code,
-                        tuple(consts), co.co_names, co.co_varnames,
-                        new_filename, co.co_name, co.co_firstlineno,
-                        co.co_lnotab, co.co_freevars, co.co_cellvars)
-        else:
-            return code_func(
-                        co.co_argcount, co.co_nlocals, co.co_stacksize,
-                        co.co_flags, co.co_code, tuple(consts), co.co_names,
-                        co.co_varnames, new_filename, co.co_name,
-                        co.co_firstlineno, co.co_lnotab,
-                        co.co_freevars, co.co_cellvars)
+        return co.replace(co_consts=tuple(consts),
+                          co_filename=new_filename)

PyInstaller/loader/pyimod04_pywin32.py

@@ -41,15 +41,13 @@ def install():
     # `pywin32_system32` sub-directory instead of the top-level application directory.
     sys.path.append(pywin32_system32_path)
 
-    # Add the DLL directory to DLL search path using os.add_dll_directory(), if available (python >= 3.8).
+    # Add the DLL directory to DLL search path using os.add_dll_directory().
     # This allows extensions from win32 directory (e.g., win32api, win32crypt) to be loaded on their own without
     # importing pywintypes first. The extensions are linked against pywintypes3X.dll.
-    if hasattr(os, 'add_dll_directory'):
-        os.add_dll_directory(pywin32_system32_path)
+    os.add_dll_directory(pywin32_system32_path)
 
-    # Add the DLL directory to PATH.
-    # This is necessary on python 3.7 that lacks `os.add_dll_directory`, and under certain versions of Anaconda python,
-    # where `os.add_dll_directory` does not work.
+    # Add the DLL directory to PATH. This is necessary under certain versions of
+    # Anaconda python, where `os.add_dll_directory` does not work.
     path = os.environ.get('PATH', None)
     if not path:
         path = pywin32_system32_path

PyInstaller/utils/hooks/conda.py

@@ -40,15 +40,11 @@
 import sys
 from pathlib import Path
 from typing import Iterable, List
+from importlib.metadata import PackagePath as _PackagePath
 
 from PyInstaller import compat
 from PyInstaller.log import logger
 
-if compat.is_py38:
-    from importlib.metadata import PackagePath as _PackagePath
-else:
-    from importlib_metadata import PackagePath as _PackagePath
-
 # Conda virtual environments each get their own copy of `conda-meta` so the use of `sys.prefix` instead of
 # `sys.base_prefix`, `sys.real_prefix` or anything from our `compat` module is intentional.
 CONDA_ROOT = Path(sys.prefix)

README.rst

@@ -41,7 +41,7 @@ but is not tested against them as part of the continuous integration tests.
 Main Advantages
 ---------------
 
-- Works out-of-the-box with any Python version 3.7-3.12.
+- Works out-of-the-box with any Python version 3.8-3.12.
 - Fully multi-platform, and uses the OS support to load the dynamic libraries,
   thus ensuring full compatibility.
 - Correctly bundles the major Python packages such as numpy, PyQt5,
@@ -66,7 +66,7 @@ Requirements and Tested Platforms
 ---------------------------------
 
 - Python:
-    - 3.7-3.12. Note that Python 3.10.0 contains a bug making it unsupportable by
+    - 3.8-3.12. Note that Python 3.10.0 contains a bug making it unsupportable by
       PyInstaller. PyInstaller will also not work with beta releases of Python
       3.13.
 - Windows (32bit/64bit/ARM64):

doc/index.rst

@@ -11,7 +11,7 @@ PyInstaller Manual
 
 PyInstaller bundles a Python application and all its dependencies into a single package.
 The user can run the packaged app without installing a Python interpreter or any modules.
-PyInstaller supports Python 3.7 and newer, and correctly bundles many major Python packages
+PyInstaller supports Python 3.8 and newer, and correctly bundles many major Python packages
 such as numpy, matplotlib, PyQt, wxPython, and others.
 
 PyInstaller is tested against Windows, MacOS X, and Linux.

doc/man/pyinstaller.rst

@@ -23,7 +23,7 @@ PyInstaller is a program that freezes (packages) Python programs into
 stand-alone executables, under Windows, GNU/Linux, macOS,
 FreeBSD, OpenBSD, Solaris and AIX.
 Its main advantages over similar tools are that PyInstaller works with
-Python 3.7-3.11, it builds smaller executables thanks to transparent
+Python 3.8-3.11, it builds smaller executables thanks to transparent
 compression, it is fully multi-platform, and use the OS support to load the
 dynamic libraries, thus ensuring full compatibility.
 

doc/spec-files.rst

@@ -363,10 +363,6 @@ For example modify the spec file this way::
           exclude_binaries=...
           )
 
-.. Note:: The unbuffered stdio mode (the ``u`` option) enables unbuffered
-   binary layer of ``stdout`` and ``stderr`` streams on all supported Python
-   versions. The unbuffered text layer requires Python 3.7 or later.
-
 
 .. _spec file options for a macOS bundle:
 

doc/usage.rst

@@ -592,7 +592,8 @@ Building 32-bit Apps in macOS
           on modern versions of macOS, see :ref:`here <macos multi-arch support>`).
           However, PyInstaller still supports building 32-bit bootloader,
           and 32-bit/64-bit Python installers are still available from
-          python.org for (some) versions of Python 3.7.
+          python.org for (some) versions of Python 3.7 which PyInstaller dropped
+          support for in v6.0.
 
 Older versions of macOS supported both 32-bit and 64-bit executables.
 PyInstaller builds an app using the the word-length of the Python used to execute it.

doc/when-things-go-wrong.rst

@@ -108,7 +108,7 @@ Build-Time Python Errors
 PyInstaller sometimes terminates by raising a Python exception.
 In most cases the reason is clear from the exception message,
 for example "Your system is not supported", or "Pyinstaller
-requires at least Python 3.7".
+requires at least Python 3.8".
 Others clearly indicate a bug that should be reported.
 
 One of these errors can be puzzling, however:

news/6475.core.rst

@@ -0,0 +1 @@
+Drop support for end of life Python 3.7.

setup.cfg

@@ -39,7 +39,6 @@ classifiers =
     Programming Language :: Python
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
@@ -58,7 +57,7 @@ classifiers =
 packages = find:
 zip_safe = False
 include_package_data = False
-python_requires = >=3.7, <3.13
+python_requires = >=3.8, <3.13
 ## IMPORTANT: Keep aligned with requirements.txt
 install_requires =
     setuptools >= 42.0.0
@@ -67,7 +66,6 @@ install_requires =
     pywin32-ctypes >= 0.2.1 ; sys_platform == 'win32'
     macholib >= 1.8 ; sys_platform == 'darwin'
     pyinstaller-hooks-contrib >= 2021.4
-    importlib-metadata >= 1.4 ; python_version < '3.8'
 
 [options.packages.find]
 include =

tests/requirements-libraries.txt

@@ -16,7 +16,7 @@ importlib_resources==5.12.0; python_version < '3.9'
 # -------
 # These packages work with no (known) issues.
 babel==2.12.1
-Django==4.2.2; python_version >= '3.8'
+Django==4.2.2
 future==0.18.3
 gevent==22.10.2
 ipython==8.14.0; python_version >= '3.9'
@@ -53,10 +53,10 @@ PyQt6-WebEngine==6.5.0
 python-dateutil==2.8.2
 pytz==2023.3
 requests==2.31.0
-scipy==1.10.1; python_version >= '3.8'
+scipy==1.10.1
 # simplejson is used for text_c_extension
 simplejson==3.19.1
-sphinx==7.0.1;  python_version >= '3.8'
+sphinx==7.0.1
 # Required for test_namespace_package
 sqlalchemy==2.0.16
 zope.interface==6.0
@@ -66,10 +66,7 @@ Pillow==9.5.0
 # Python versions not supported / supported for older package versions
 # -------------------------------------------------------
 
-# numpy dropped support for python 3.7 as of 1.22
-numpy==1.21.5; python_version == '3.7'  # pyup: ignore
 numpy==1.24.3; python_version == '3.8'  # pyup: ignore
 
-# ipython dropped support for python 3.7 in v8.0.0 and for python 3.8 in v8.13.0
-ipython==7.34.0; python_version == '3.7'  # pyup: ignore
+# ipython dropped support for python 3.8 in v8.13.0
 ipython==8.12.1; python_version == '3.8'  # pyup: ignore