Support Python 3.7 (#111)

* Support Python 3.7

* fix

* skip

Author: ofek

.github/workflows/test.yml

@@ -24,7 +24,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.8', '3.9', '3.10']
+        python-version: ['3.7', '3.8', '3.9', '3.10']
 
     steps:
     - uses: actions/checkout@v2
@@ -55,7 +55,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['2.7', '3.8']
+        python-version: ['2.7', '3.7', '3.8', '3.9', '3.10']
 
     steps:
     - uses: actions/checkout@v2

docs/meta/history.md

@@ -10,6 +10,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ### Unreleased
 
+***Added:***
+
+- Support Python 3.7
+
 ### [1.0.0rc7](https://github.com/ofek/hatch/releases/tag/hatch-v1.0.0rc7) - 2022-01-08 ### {: #hatch-v1.0.0rc7 }
 
 ***Added:***

hatch.toml

@@ -13,7 +13,7 @@ full = "pytest --cov-report=term-missing --cov-config=pyproject.toml --cov=hatch
 dev = "pytest --no-cov"
 
 [[envs.test.matrix]]
-python = ["38", "39", "310"]
+python = ["37", "38", "39", "310"]
 
 [envs.lint]
 skip-install = true

hatch/cli/terminal.py

@@ -36,7 +36,9 @@ def initialize_styles(self, styles: dict):  # no cov
 
         for option, style in styles.items():
             attribute = f'_style_level_{option}'
-            if default_level := getattr(self, attribute, None):
+
+            default_level = getattr(self, attribute, None)
+            if default_level:
                 try:
                     style = Style.parse(style)
                 except StyleSyntaxError as e:  # no cov

hatch/project/core.py

@@ -60,14 +60,16 @@ def from_config(cls, config: RootConfig, project: str) -> Project | None:
             return None
 
         if project in config.projects:
-            if location := config.projects[project].location:
+            location = config.projects[project].location
+            if location:
                 return cls(Path(location).resolve(), name=project)
         else:
             for project_dir in config.dirs.project:
                 if not project_dir:
                     continue
 
-                if (location := Path(project_dir, project)).is_dir():
+                location = Path(project_dir, project)
+                if location.is_dir():
                     return cls(Path(location).resolve(), name=project)
 
     def find_project_root(self) -> Path | None:

hatch/publish/pypi.py

@@ -141,7 +141,11 @@ def publish(self, artifacts: list, options: dict):
                 sha256_hash = hashlib.sha256()
                 blake2_256_hash = hashlib.blake2b(digest_size=32)
 
-                while chunk := f.read(io.DEFAULT_BUFFER_SIZE):
+                while True:
+                    chunk = f.read(io.DEFAULT_BUFFER_SIZE)
+                    if not chunk:
+                        break
+
                     md5_hash.update(chunk)
                     sha256_hash.update(chunk)
                     blake2_256_hash.update(chunk)
@@ -202,9 +206,10 @@ def get_wheel_form_data(app, artifact):
 
     with zipfile.ZipFile(str(artifact), 'r') as zip_archive:
         dist_info_dir = ''
-        for path in zipfile.Path(zip_archive).iterdir():
-            if path.name.endswith('.dist-info'):
-                dist_info_dir = path.name
+        for path in zip_archive.namelist():
+            root = path.split('/', 1)[0]
+            if root.endswith('.dist-info'):
+                dist_info_dir = root
                 break
         else:  # no cov
             app.abort(f'Could not find the `.dist-info` directory in wheel: {artifact}')

hatch/template/files_default.py

@@ -70,7 +70,7 @@ class PyProject(File):
 name = "{project_name_normalized}"
 description = {description!r}
 readme = "{readme_file_path}"
-requires-python = ">=3.8"
+requires-python = ">=3.7"
 license = "{license_expression}"{license_files}
 keywords = []
 authors = [
@@ -79,6 +79,7 @@ class PyProject(File):
 classifiers = [
   "Development Status :: 4 - Beta",
   "Programming Language :: Python",
+  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
@@ -142,7 +143,7 @@ def __init__(self, template_config: dict, plugin_config: dict):
 no-cov = "cov --no-cov"
 
 [[tool.hatch.envs.test.matrix]]
-python = ["38", "39", "310"]
+python = ["37", "38", "39", "310"]
 
 [tool.coverage.run]
 branch = true

hatch/template/files_feature_ci.py

@@ -28,7 +28,7 @@ class CommandLinePackage(File):
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.8', '3.9', '3.10']
+        python-version: ['3.7', '3.8', '3.9', '3.10']
 
     steps:
     - uses: actions/checkout@v2

hatch/utils/fs.py

@@ -52,10 +52,11 @@ def as_cwd(self, *args, **kwargs) -> Generator[Path, None, None]:
     @contextmanager
     def temp_hide(self) -> Generator[Path, None, None]:
         with temp_directory() as temp_dir:
+            temp_path = Path(temp_dir, self.name)
             try:
-                temp_path = self.replace(temp_dir / self.name)
+                self.replace(temp_dir / self.name)
             except FileNotFoundError:
-                temp_path = Path(temp_dir, self.name)
+                pass
 
             try:
                 yield temp_path

hatch/utils/platform.py

@@ -141,7 +141,10 @@ def join_command_args(self):
             if self.windows:
                 self.__join_command_args = self._subprocess.list2cmdline
             else:
-                self.__join_command_args = self._shlex.join
+                try:
+                    self.__join_command_args = self._shlex.join
+                except AttributeError:
+                    self.__join_command_args = lambda command_args: ' '.join(map(self._shlex.quote, command_args))
 
         return self.__join_command_args