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 python-json-socket (jsocket)
 ============================
 
@@ -109,7 +111,7 @@ Examples and Tests
 
 - Examples: see `examples/example_servers.py` and `scripts/smoke_test.py`
 - Pytest: end-to-end and listener tests under `tests/`
-  - Run: `pytest -q`
+  - Run: `PYTHONPATH=. pytest -q`
 
 
 Behavior-Driven Tests (Behave)