fix(pipx): depend on python

Fixes a race condition when installing with pipx forge. Later I should
improve this to fetch transitive dependencies so this does not need
to be manually specified.

src/cmd.rs

@@ -111,6 +111,8 @@ where
     U: IntoIterator,
     U::Item: Into<OsString>,
 {
+    // TODO: move this into a generic forge method/macro (#2125)
+    // TODO: fetch transitive dependencies like pipx -> python
     let config = Config::get();
     let dependencies = forge
         .get_dependencies(&ToolRequest::System(forge.name().into()))?

src/forge/pipx.rs

@@ -27,7 +27,7 @@ impl Forge for PIPXForge {
     }
 
     fn get_dependencies(&self, _tvr: &ToolRequest) -> eyre::Result<Vec<ForgeArg>> {
-        Ok(vec!["pipx".into()])
+        Ok(vec!["pipx".into(), "python".into()])
     }
 
     /*

src/toolset/mod.rs

@@ -160,6 +160,7 @@ impl Toolset {
             debug!("installing {} leaf tools first", leaf_deps.len());
             self.install_versions(config, leaf_deps.into_iter().cloned().collect(), mpr, opts)?;
         }
+        debug!("install_versions: {}", versions.iter().join(" "));
         let settings = Settings::try_get()?;
         let queue: Vec<_> = versions
             .into_iter()