Bump version to 0.0.1-alpha.9 (#634)

docs/reference/cli.md

@@ -65,9 +65,9 @@ over all configuration files.</p>
 <p>Other command-line arguments (such as relative paths) will be resolved relative to the current working directory.</p>
 </dd><dt id="ty-check--python"><a href="#ty-check--python"><code>--python</code></a> <i>path</i></dt><dd><p>Path to the Python environment.</p>
 <p>ty uses the Python environment to resolve type information and third-party dependencies.</p>
-<p>If not specified, ty will attempt to infer it from the <code>VIRTUAL_ENV</code> environment variable or discover a <code>.venv</code> directory in the project root or working directory.</p>
+<p>If not specified, ty will attempt to infer it from the <code>VIRTUAL_ENV</code> or <code>CONDA_PREFIX</code> environment variables, or discover a <code>.venv</code> directory in the project root or working directory.</p>
 <p>If a path to a Python interpreter is provided, e.g., <code>.venv/bin/python3</code>, ty will attempt to find an environment two directories up from the interpreter's path, e.g., <code>.venv</code>. At this time, ty does not invoke the interpreter to determine the location of the environment. This means that ty will not resolve dynamic executables such as a shim.</p>
-<p>ty will search in the resolved environments's <code>site-packages</code> directories for type information and third-party imports.</p>
+<p>ty will search in the resolved environment's <code>site-packages</code> directories for type information and third-party imports.</p>
 </dd><dt id="ty-check--python-platform"><a href="#ty-check--python-platform"><code>--python-platform</code></a>, <code>--platform</code> <i>platform</i></dt><dd><p>Target platform to assume when resolving types.</p>
 <p>This is used to specialize the type of <code>sys.platform</code> and will affect the visibility of platform-specific functions and attributes. If the value is set to <code>all</code>, no assumptions are made about the target platform. If unspecified, the current system's platform will be used.</p>
 </dd><dt id="ty-check--python-version"><a href="#ty-check--python-version"><code>--python-version</code></a>, <code>--target-version</code> <i>version</i></dt><dd><p>Python version to assume when resolving types.</p>

docs/reference/configuration.md

@@ -76,6 +76,7 @@ python = "./.venv"
 Specifies the target platform that will be used to analyze the source code.
 If specified, ty will understand conditions based on comparisons with `sys.platform`, such
 as are commonly found in typeshed to reflect the differing contents of the standard library across platforms.
+If `all` is specified, ty will assume that the source code can run on any platform.
 
 If no platform is specified, ty will use the current platform:
 - `win32` for Windows
@@ -86,7 +87,7 @@ If no platform is specified, ty will use the current platform:
 
 **Default value**: `<current-platform>`
 
-**Type**: `"win32" | "darwin" | "android" | "ios" | "linux" | str`
+**Type**: `"win32" | "darwin" | "android" | "ios" | "linux" | "all" | str`
 
 **Example usage** (`pyproject.toml`):
 
@@ -105,9 +106,18 @@ The version should be specified as a string in the format `M.m` where `M` is the
 and `m` is the minor (e.g. `"3.0"` or `"3.6"`).
 If a version is provided, ty will generate errors if the source code makes use of language features
 that are not supported in that version.
-It will also understand conditionals based on comparisons with `sys.version_info`, such
-as are commonly found in typeshed to reflect the differing contents of the standard
-library across Python versions.
+
+If a version is not specified, ty will try the following techniques in order of preference
+to determine a value:
+1. Check for the `project.requires-python` setting in a `pyproject.toml` file
+   and use the minimum version from the specified range
+2. Check for an activated or configured virtual environment
+   and use the Python version of that environment
+3. Fall back to the default value (see below)
+
+For some language features, ty can also understand conditionals based on comparisons
+with `sys.version_info`. These are commonly found in typeshed, for example,
+to reflect the differing contents of the standard library across Python versions.
 
 **Default value**: `"3.13"`