How to determine the version of PyJWT?

Question

I have two different software environments (Environment A and Environment B) and I'm trying to run PyJWT on both environments. It is working perfectly fine on one environment Environment A but fail on Environment B. The error I'm getting on Environment B when I call `jwt.encode()` with `algorithm` == `ES` is: `Algorithm not supported`. I'm trying to figure out why it works on Environment A but not Environment B. It seems like the two environments have different versions of PyJWT installed. But determining which version of PyJWT is installed on Environment B is proving difficult for me. How can I do it?? I ran the following instrumented code on both Environment A and Environment B: ``` import jwt, cryptography, sys, pkg_resources my_private_key = """XXXXX""" my_public_key = """YYYYYY""" original = {"Hello": "World"} print "sys.version = {}".format(str(sys.version)) try: print "dir(jwt) = {}".format(str(dir(jwt))) except Exception as e: print "Failed to get dir of jwt module: {}".format…

Accepted Answer

The PyJWT `.__version__` attribute appeared in `0.2.2` in this commit.

Generally, to find the version of the package, that was installed via setuptools, you need to run following code:

```
import pkg_resources
print pkg_resources.require("jwt")[0].version
```

If `pip` was used to install the package, you could try from linux shell:

```
pip show jwt | grep Version
```

Same thing from inside the python:

```
import pip
print next(pip.commands.show.search_packages_info(['jwt']))['version']
```

How to determine the version of PyJWT?

Solution

Problem