David Y.
The Problem
How do I access environment variables in Python?
The Solution
The Python os module contains a mapping object (similar to a dictionary) called environ that stores all environment variables and their values.
import osprint(os.environ) # show all environment variables and their values.
One way to access environment variables is to use os.environ like a dictionary. For example, os.environ['SHELL'] will contain the value of the SHELL environment variable. However, if the requested environment variable does not exist, trying to access it will raise a KeyError exception. Therefore, a safer way to do this is use the os.getenv function, which allows us to specify a default fallback value.
shell_ev = os.getenv('SHELL', '/bin/bash')
This code will store the value of the SHELL environment variable in shell_ev. If this environment variable does not exist, the string /bin/bash will be stored.
Get Started With Sentry
Get actionable, code-level insights to resolve Python performance bottlenecks and errors.
Create a free Sentry account
Create a Python project and note your DSN
Grab the Sentry Python SDK
pip install --upgrade sentry-sdk
- Configure your DSN
import sentry_sdksentry_sdk.init( "https://<key>@sentry.io/<project>", # Set traces_sample_rate to 1.0 to capture 100% # of transactions for performance monitoring. # We recommend adjusting this value in production. traces_sample_rate=1.0,)
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