Mercurial > repos > shellac > guppy_basecaller
comparison env/lib/python3.7/site-packages/virtualenv/config/env_var.py @ 5:9b1c78e6ba9c draft default tip
"planemo upload commit 6c0a8142489327ece472c84e558c47da711a9142"
| author | shellac |
|---|---|
| date | Mon, 01 Jun 2020 08:59:25 -0400 |
| parents | 79f47841a781 |
| children |
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| 4:79f47841a781 | 5:9b1c78e6ba9c |
|---|---|
| 1 from __future__ import absolute_import, unicode_literals | |
| 2 | |
| 3 import os | |
| 4 | |
| 5 from virtualenv.util.six import ensure_str, ensure_text | |
| 6 | |
| 7 from .convert import convert | |
| 8 | |
| 9 | |
| 10 def get_env_var(key, as_type): | |
| 11 """Get the environment variable option. | |
| 12 | |
| 13 :param key: the config key requested | |
| 14 :param as_type: the type we would like to convert it to | |
| 15 :return: | |
| 16 """ | |
| 17 environ_key = ensure_str("VIRTUALENV_{}".format(key.upper())) | |
| 18 if os.environ.get(environ_key): | |
| 19 value = os.environ[environ_key] | |
| 20 # noinspection PyBroadException | |
| 21 try: | |
| 22 source = "env var {}".format(ensure_text(environ_key)) | |
| 23 as_type = convert(value, as_type, source) | |
| 24 return as_type, source | |
| 25 except Exception: # note the converter already logs a warning when failures happen | |
| 26 pass | |
| 27 | |
| 28 | |
| 29 __all__ = ("get_env_var",) |