fix: add missing __init__ docstrings (#817)

py-rattler/rattler/lock/channel.py

@@ -7,6 +7,9 @@ class LockChannel:
     _channel: PyLockChannel
 
     def __init__(self, url: str) -> None:
+        """
+        Create a new channel.
+        """
         self._channel = PyLockChannel(url)
 
     @classmethod

py-rattler/rattler/lock/environment.py

@@ -17,6 +17,9 @@ class Environment:
     _env: PyEnvironment
 
     def __init__(self, name: str, requirements: Dict[Platform, List[RepoDataRecord]]) -> None:
+        """
+        Create a new environment.
+        """
         self._env = PyEnvironment(
             name,
             # TODO: move this logic to rust

py-rattler/rattler/lock/lock_file.py

@@ -15,6 +15,11 @@ class LockFile:
     _lock_file: PyLockFile
 
     def __init__(self, envs: Dict[str, Environment]) -> None:
+        """
+        Create a new rattler-lock file.
+
+        `envs` maps each environment to its name.
+        """
         self._lock_file = PyLockFile({name: env._env for (name, env) in envs.items()})
 
     @staticmethod

py-rattler/rattler/match_spec/match_spec.py

@@ -81,6 +81,19 @@ class MatchSpec:
     """
 
     def __init__(self, spec: str, strict: bool = False) -> None:
+        """
+        Create a new version spec.
+
+        When `strict` is `True`, some ambiguous version specs are rejected.
+
+        ```python
+        >>> MatchSpec("pip >=24.0")
+        MatchSpec("pip >=24.0")
+        >>> MatchSpec("pip 24")
+        MatchSpec("pip ==24")
+        >>>
+        ```
+        """
         if isinstance(spec, str):
             self._match_spec = PyMatchSpec(spec, strict)
         else:

py-rattler/rattler/match_spec/nameless_match_spec.py

@@ -17,6 +17,19 @@ class NamelessMatchSpec:
     """
 
     def __init__(self, spec: str, strict: bool = False) -> None:
+        """
+        Create a new version spec.
+
+        When `strict` is `True`, some ambiguous version specs are rejected.
+
+        ```python
+        >>> NamelessMatchSpec(">=24.0")
+        NamelessMatchSpec(">=24.0")
+        >>> NamelessMatchSpec("24")
+        NamelessMatchSpec("==24")
+        >>>
+        ```
+        """
         if isinstance(spec, str):
             self._nameless_match_spec = PyNamelessMatchSpec(spec, strict)
         else: