https://github.com/dillon-giacoppo/rules_python_external/pull/13\#issuecomment-577429130

Author: Jonathon Belotti

README.md

@@ -17,7 +17,9 @@ botocore~=1.12.247
 click~=7.0
 ```
 
-Can 'compiles' it so you get a transitively-closed `requirements.txt` like this, which should be passed to `pip_install` below:
+These above are the third-party packages you can directly import.
+
+`pip-compile` 'compiles' it so you get a transitively-closed `requirements.txt` like this, which should be passed to `pip_install` below:
 
 ```
 boto3==1.9.253
@@ -68,6 +70,8 @@ py_binary(
 )
 ```
 
+Note that above you do not need to add transitively required packages to `deps = [ ... ]`
+
 ## Development
 
 ### Testing