Merge #1669: gitignore: Add Python cache files

c1bcb03 gitignore: Add Python cache files (Tim Ruffing)

Pull request description:

ACKs for top commit:
  theStack:
    ACK c1bcb03

Tree-SHA512: 60db92e01145787e742f4852770b60eb006593d14d7f862a0b248c21f5bc458cb099e3907833aed18f02465c7ec3c1aee208a24c456837fde2bd9c2556998f74

Author: real-or-random

.gitignore

@@ -65,3 +65,7 @@ libsecp256k1.pc
 /CMakeUserPresets.json
 # Default CMake build directory.
 /build
+
+### Python
+__pycache__/
+*.py[oc]