toml: move from toml to tomllib + tomli_w

* toml is getting removed from distributions due to being generally
  unmaintained and not support the lastest TOML standard.
* For parsing use tomllib which is included in python3.11 and tomli for
  earlier interpeter versions.
* For writing use tomli-w. tomli-w.dump() expects bytes-like objects so
  work around it to keep compatability and minimize changes elsewhere.

Signed-off-by: Alfred Wingate <parona@protonmail.com>

dotdrop/cfg_yaml.py

@@ -26,7 +26,11 @@ import io
 from copy import deepcopy
 from itertools import chain
 from ruamel.yaml import YAML as yaml
-import toml
+try:
+    import tomllib
+except ImportError:
+    import tomli as tomllib
+import tomli_w
 
 # local imports
 from dotdrop.version import __version__ as VERSION
@@ -1345,7 +1349,7 @@ class CfgYaml:
         """load from toml"""
         with open(path, 'r', encoding='utf8') as file:
             data = file.read()
-        content = toml.loads(data)
+        content = tomllib.loads(data)
         # handle inexistent dotfiles/profiles
         # since toml doesn't have a nul/nil/null/none
         if cls.key_dotfiles not in content:
@@ -1375,7 +1379,7 @@ class CfgYaml:
     @classmethod
     def __toml_dump(cls, content, file):
         """dump to toml"""
-        toml.dump(content, file)
+        file.write(tomli_w.dumps(content))
 
     ########################################################
     # templating

dotdrop/utils.py

@@ -16,6 +16,7 @@ import filecmp
 import itertools
 import shutil
 import json
+import sys
 import requests
 from packaging import version
 
@@ -393,12 +394,22 @@ def dependencies_met():
     except ImportError as exc:
         raise UnmetDependency(err) from exc
 
-    # toml
-    name = 'toml'
+    # tomli
+    if sys.version_info < (3, 11):
+        name = 'tomli'
+        err = f'missing python module \"{name}\"'
+        try:
+            import tomli
+            assert tomli
+        except ImportError as exc:
+            raise UnmetDependency(err) from exc
+
+    # tomli_w
+    name = 'tomli_w'
     err = f'missing python module \"{name}\"'
     try:
-        import toml
-        assert toml
+        import tomli_w
+        assert tomli_w
     except ImportError as exc:
         raise UnmetDependency(err) from exc
 

packages/arch-dotdrop-git/PKGBUILD

@@ -9,7 +9,7 @@ arch=('any')
 url="https://github.com/deadc0de6/dotdrop"
 license=('GPL')
 groups=()
-depends=('python' 'python-setuptools' 'python-jinja' 'python-docopt' 'python-ruamel-yaml' 'python-magic' 'python-requests' 'python-packaging' 'python-toml' 'python-distro')
+depends=('python' 'python-setuptools' 'python-jinja' 'python-docopt' 'python-ruamel-yaml' 'python-magic' 'python-requests' 'python-packaging' 'python-tomli-w' 'python-distro')
 makedepends=('git')
 provides=(dotdrop)
 conflicts=(dotdrop)

packages/arch-dotdrop/PKGBUILD

@@ -8,7 +8,7 @@ arch=('any')
 url="https://github.com/deadc0de6/dotdrop"
 license=('GPL')
 groups=()
-depends=('python' 'python-setuptools' 'python-jinja' 'python-docopt' 'python-ruamel-yaml' 'python-magic' 'python-requests' 'python-packaging' 'python-toml' 'python-distro')
+depends=('python' 'python-setuptools' 'python-jinja' 'python-docopt' 'python-ruamel-yaml' 'python-magic' 'python-requests' 'python-packaging' 'python-tomli-w' 'python-distro')
 makedepends=('git')
 source=("git+https://github.com/deadc0de6/dotdrop.git#tag=v${pkgver}")
 md5sums=('SKIP')

requirements.txt

@@ -4,5 +4,6 @@ ruamel.yaml; python_version > '3.5'
 python-magic; python_version > '3.5'
 packaging; python_version > '3.5'
 requests; python_version > '3.5'
-toml; python_version > '3.5'
+tomli; python_version > '3.5' and python_version < '3.11'
+tomli_w; python_version > '3.5'
 distro; python_version > '3.5'

scripts/yaml_to_toml.py

@@ -9,8 +9,8 @@ convert yaml config file to toml
 import sys
 # pip3 install ruamel.yaml
 from ruamel.yaml import YAML as yaml
-# pip3 install toml
-import toml
+# pip3 install tomli_w
+import tomli_w
 
 
 def yaml_load(path):
@@ -42,7 +42,7 @@ def replace_none(content):
 
 def toml_dump(content):
     """dump toml to stdout"""
-    return toml.dumps(content)
+    return tomli_w.dumps(content)
 
 
 # pylint: disable=C0103

setup.py

@@ -50,7 +50,8 @@ setup(
     install_requires=[
         'docopt', 'Jinja2', 'ruamel.yaml',
         'python-magic', 'packaging', 'requests',
-        'toml', 'distro'],
+        'tomli; python_version < "3.11"',
+        'tomli_w', 'distro'],
 
     extras_require={
         'dev': ['check-manifest'],