fix(langchain)

closes #4488

projects/langchain.com/package.yml

@@ -1,27 +1,30 @@
 distributable:
   url: https://github.com/langchain-ai/langchain/archive/v{{version}}.tar.gz
   strip-components: 1
+
 versions:
   github: langchain-ai/langchain
+
 dependencies:
   python.org: ^3.12
   docker.com/compose: ^2.23
+
 runtime:
   env:
     PYTHONPATH: $PYTHONPATH:{{prefix}}/lib/python{{deps.python.org.version.major}}/site-packages
+
 build:
   working-directory: libs/langchain
   script:
     - python -m pip install --prefix={{prefix}} .
     - run: ln -s python{{deps.python.org.version.marketing}} python{{deps.python.org.version.major}}
       working-directory: ${{prefix}}/lib
-    - run: |
-        sed -i.bak "s|{{deps.python.org.prefix}}/bin/python|/usr/bin/env python|g" ./*
-        rm *.bak
+    - run: sed -i'' "s|{{deps.python.org.prefix}}/bin/python|/usr/bin/env python|g" ./*
       working-directory: ${{prefix}}/bin
   env:
     linux:
       MULTIDICT_NO_EXTENSIONS: 1
+
 provides:
   - bin/f2py
   - bin/jsondiff
@@ -30,6 +33,7 @@ provides:
   - bin/langchain-server
   - bin/langsmith
   - bin/normalizer
+
 test:
   - python -c "import langchain; print(langchain.__version__)" | grep {{version}}
   - killall langsmith || true

projects/pip.pypa.io/package.yml

@@ -14,7 +14,7 @@ dependencies:
 runtime:
   env:
     PIP_DISABLE_PIP_VERSION_CHECK: 1
-    PYTHONPATH: ${{prefix}}
+    PYTHONPATH: ${{prefix}}:$PYTHONPATH
 
 build:
   dependencies: