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computery_stuff/python.md

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+---
+author: Alvie Rahman
+date: \today
+title: Python
+tags: [ docker, python, programming, io ]
+---
+
+# Issues
+
+## No log output when running in docker
+
+Change line beginning with `CMD` from:
+
+```Dockerfile
+CMD [ "python", "app.py" ]
+```
+
+to:
+
+```Dockerfile
+CMD [ "python", "-u", "app.py" ]
+```
+
+This disabled output buffering (stdout and stderr).
+