Need a better user agent pattern for biothings_client.py about biothings_client.py

[namespacestd0]

@newgene May I ask if the space between the specified user_agent string example is left intentionally? For instance, when you mentioned "biothings_client.py/ mygene", did you mean "biothings_client.py/mygene"? Double checking this because it seems to contradict with common practice I've observed.

[namespacestd0]

Basing on a common pattern:

User-Agent: <product>/<version> (<system-information>) <platform> (<platform-details>)

I propose:

biothings_client.py/<release> (<os>; python:<version>; <python-packages>) <api>/<version> (<server-info>) user_query/<commit-hash>

With all fields included, it could look like:

biothings_client.py/0.2.0 (Linux x86_64; python:3.7.1; requests:2.3.0) mygene/v3 (es:7.1) user_query/825e27e

We can start with including the most useful fields, which looks like:

biothings_client.py/0.2.0 (python:3.7.1) mygene/v3

This way, we can be better informed:

• if continuing support with lower python versions is necessary
• which service is more popular to be accessed with this python client
  ...

[newgene]

Great! Let's starts with this:

biothings_client.py/0.2.0 (python:3.7.1: requests:2.3.0)

for biothings_client.py direct calls.

biothings_client.py/0.2.0 (python:3.7.1: requests:2.3.0)  mygene.py/3.1.0

for calling from mygene.py (same for myvariant.py)

[namespacestd0]

Implemented in 092e3ca
biothings/myvariant.py@79e4fc7
biothings/mygene.py@c5cedc9
Existing automated tests passed.