switch default to install_pip=True in python.py
#5316
| Job | Run time |
|---|---|
| 1m 33s | |
| 1m 56s | |
| 1m 4s | |
| 1m 30s | |
| 1m 55s | |
| 1m 37s | |
| 1m 45s | |
| 1m 35s | |
| 1m 27s | |
| 1m 44s | |
| 1m 31s | |
| 1m 55s | |
| 1m 56s | |
| 1m 51s | |
| 1m 48s | |
| 1m 43s | |
| 1m 41s | |
| 28m 31s |