File python312.patch of Package python-oscrypto

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File python312.patch of Package python-oscrypto

From 3be536e4a61ac5fbd403ee80cdb54cb666f34679 Mon Sep 17 00:00:00 2001
From: Dominik 'Rathann' Mierzejewski <dominik@greysector.net>
Date: Thu, 17 Aug 2023 09:05:29 +0200
Subject: [PATCH 01/13] use `importlib` instead of deprecated `imp` module

This fixes tests with python 3.12 where the `imp` module was
[removed](https://docs.python.org/3.12/whatsnew/3.12.html#removed).

This should fix issue #74.
---
 tests/__init__.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

Index: oscrypto-1.3.0/tests/__init__.py
===================================================================
--- oscrypto-1.3.0.orig/tests/__init__.py
+++ oscrypto-1.3.0/tests/__init__.py
@@ -1,10 +1,17 @@
 # coding: utf-8
 from __future__ import unicode_literals, division, absolute_import, print_function
 
-import imp
 import os
+import sys
 import unittest
 
+if sys.version_info < (3, 5):
+    import imp
+else:
+    import importlib
+    import importlib.abc
+    import importlib.util
+
 
 __version__ = '1.3.0'
 __version_info__ = (1, 3, 0)
@@ -66,6 +73,47 @@ def local_oscrypto():
     return (_asn1crypto_module, _oscrypto_module)
 
 
+if sys.version_info >= (3, 5):
+    class ModCryptoMetaFinder(importlib.abc.MetaPathFinder):
+        def setup(self):
+            self.modules = {}
+            sys.meta_path.insert(0, self)
+
+        def add_module(self, package_name, package_path):
+            if package_name not in self.modules:
+                self.modules[package_name] = package_path
+
+        def find_spec(self, fullname, path, target=None):
+            name_parts = fullname.split('.')
+            if name_parts[0] not in self.modules:
+                return None
+
+            package = name_parts[0]
+            package_path = self.modules[package]
+
+            fullpath = os.path.join(package_path, *name_parts[1:])
+
+            if os.path.isdir(fullpath):
+                filename = os.path.join(fullpath, "__init__.py")
+                submodule_locations = [fullpath]
+            else:
+                filename = fullpath + ".py"
+                submodule_locations = None
+
+            if not os.path.exists(filename):
+                return None
+
+            return importlib.util.spec_from_file_location(
+                fullname,
+                filename,
+                loader=None,
+                submodule_search_locations=submodule_locations
+            )
+
+    CUSTOM_FINDER = ModCryptoMetaFinder()
+    CUSTOM_FINDER.setup()
+
+
 def _import_from(mod, path, mod_dir=None):
     """
     Imports a module from a specific path
@@ -84,18 +132,44 @@ def _import_from(mod, path, mod_dir=None
         None if not loaded, otherwise the module
     """
 
+    if mod in sys.modules:
+        return sys.modules[mod]
+
     if mod_dir is None:
-        mod_dir = mod
+        full_mod = mod
+    else:
+        full_mod = mod_dir.replace(os.sep, '.')
+
+    if mod_dir is None:
+        mod_dir = mod.replace('.', os.sep)
 
     if not os.path.exists(path):
         return None
 
-    if not os.path.exists(os.path.join(path, mod_dir)):
+    source_path = os.path.join(path, mod_dir, '__init__.py')
+    if not os.path.exists(source_path):
+        source_path = os.path.join(path, mod_dir + '.py')
+
+    if not os.path.exists(source_path):
         return None
 
+    if os.sep in mod_dir:
+        append, mod_dir = mod_dir.rsplit(os.sep, 1)
+        path = os.path.join(path, append)
+
     try:
-        mod_info = imp.find_module(mod_dir, [path])
-        return imp.load_module(mod, *mod_info)
+        if sys.version_info < (3, 5):
+            mod_info = imp.find_module(mod_dir, [path])
+            return imp.load_module(mod, *mod_info)
+
+        else:
+            package = mod.split('.', 1)[0]
+            package_dir = full_mod.split('.', 1)[0]
+            package_path = os.path.join(path, package_dir)
+            CUSTOM_FINDER.add_module(package, package_path)
+
+            return importlib.import_module(mod)
+
     except ImportError:
         return None
 
Index: oscrypto-1.3.0/dev/_import.py
===================================================================
--- oscrypto-1.3.0.orig/dev/_import.py
+++ oscrypto-1.3.0/dev/_import.py
@@ -1,17 +1,64 @@
 # coding: utf-8
 from __future__ import unicode_literals, division, absolute_import, print_function
 
-import imp
 import sys
 import os
 
 from . import build_root, package_name, package_root
 
+if sys.version_info < (3, 5):
+    import imp
+else:
+    import importlib
+    import importlib.abc
+    import importlib.util
+
+
 if sys.version_info < (3,):
     getcwd = os.getcwdu
 else:
     getcwd = os.getcwd
 
+if sys.version_info >= (3, 5):
+    class ModCryptoMetaFinder(importlib.abc.MetaPathFinder):
+        def setup(self):
+            self.modules = {}
+            sys.meta_path.insert(0, self)
+
+        def add_module(self, package_name, package_path):
+            if package_name not in self.modules:
+                self.modules[package_name] = package_path
+
+        def find_spec(self, fullname, path, target=None):
+            name_parts = fullname.split('.')
+            if name_parts[0] not in self.modules:
+                return None
+
+            package = name_parts[0]
+            package_path = self.modules[package]
+
+            fullpath = os.path.join(package_path, *name_parts[1:])
+
+            if os.path.isdir(fullpath):
+                filename = os.path.join(fullpath, "__init__.py")
+                submodule_locations = [fullpath]
+            else:
+                filename = fullpath + ".py"
+                submodule_locations = None
+
+            if not os.path.exists(filename):
+                return None
+
+            return importlib.util.spec_from_file_location(
+                fullname,
+                filename,
+                loader=None,
+                submodule_search_locations=submodule_locations
+            )
+
+    CUSTOM_FINDER = ModCryptoMetaFinder()
+    CUSTOM_FINDER.setup()
+
 
 def _import_from(mod, path, mod_dir=None, allow_error=False):
     """
@@ -34,14 +81,25 @@ def _import_from(mod, path, mod_dir=None
         None if not loaded, otherwise the module
     """
 
+    if mod in sys.modules:
+        return sys.modules[mod]
+
+    if mod_dir is None:
+        full_mod = mod
+    else:
+        full_mod = mod_dir.replace(os.sep, '.')
+
     if mod_dir is None:
         mod_dir = mod.replace('.', os.sep)
 
     if not os.path.exists(path):
         return None
 
-    if not os.path.exists(os.path.join(path, mod_dir)) \
-            and not os.path.exists(os.path.join(path, mod_dir + '.py')):
+    source_path = os.path.join(path, mod_dir, '__init__.py')
+    if not os.path.exists(source_path):
+        source_path = os.path.join(path, mod_dir + '.py')
+
+    if not os.path.exists(source_path):
         return None
 
     if os.sep in mod_dir:
@@ -49,8 +107,18 @@ def _import_from(mod, path, mod_dir=None
         path = os.path.join(path, append)
 
     try:
-        mod_info = imp.find_module(mod_dir, [path])
-        return imp.load_module(mod, *mod_info)
+        if sys.version_info < (3, 5):
+            mod_info = imp.find_module(mod_dir, [path])
+            return imp.load_module(mod, *mod_info)
+
+        else:
+            package = mod.split('.', 1)[0]
+            package_dir = full_mod.split('.', 1)[0]
+            package_path = os.path.join(path, package_dir)
+            CUSTOM_FINDER.add_module(package, package_path)
+
+            return importlib.import_module(mod)
+
     except ImportError:
         if allow_error:
             raise
Index: oscrypto-1.3.0/dev/coverage.py
===================================================================
--- oscrypto-1.3.0.orig/dev/coverage.py
+++ oscrypto-1.3.0/dev/coverage.py
@@ -4,7 +4,6 @@ from __future__ import unicode_literals,
 import cgi
 import codecs
 import coverage
-import imp
 import json
 import os
 import unittest
@@ -17,6 +16,7 @@ import subprocess
 from fnmatch import fnmatch
 
 from . import package_name, package_root, other_packages
+from ._import import _import_from
 
 if sys.version_info < (3,):
     str_cls = unicode  # noqa
@@ -103,9 +103,7 @@ def _load_package_tests(name):
     if not os.path.exists(package_dir):
         return []
 
-    tests_module_info = imp.find_module('tests', [package_dir])
-    tests_module = imp.load_module('%s.tests' % name, *tests_module_info)
-    return tests_module.test_classes()
+    return _import_from('%s_tests' % name, package_dir, 'tests').test_classes()
 
 
 def _env_info():
Index: oscrypto-1.3.0/dev/build.py
===================================================================
--- oscrypto-1.3.0.orig/dev/build.py
+++ oscrypto-1.3.0/dev/build.py
@@ -1,7 +1,6 @@
 # coding: utf-8
 from __future__ import unicode_literals, division, absolute_import, print_function
 
-import imp
 import os
 import tarfile
 import zipfile
@@ -9,6 +8,7 @@ import zipfile
 import setuptools.sandbox
 
 from . import package_root, package_name, has_tests_package
+from ._import import _import_from
 
 
 def _list_zip(filename):
@@ -45,8 +45,8 @@ def run():
 
     # Trying to call setuptools.sandbox.run_setup(setup, ['--version'])
     # resulted in a segfault, so we do this instead
-    module_info = imp.find_module('version', [os.path.join(package_root, package_name)])
-    version_mod = imp.load_module('%s.version' % package_name, *module_info)
+    package_dir = os.path.join(package_root, package_name)
+    version_mod = _import_from('%s.version' % package_name, package_dir, 'version')
 
     pkg_name_info = (package_name, version_mod.__version__)
     print('Building %s-%s' % pkg_name_info)

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