Assertion Error when passing invalid address

[NoWay426]

I'm running into an issue when using the python module vs using requests.get(https://api.blockcypher/...)

When checking an address via requests, if the address is invalid a dict item is still returned.

{"error": "Address <invalid_address> is invalid: Address <invalid address> is of unknown size."}

When using the module, an assertion error is thrown for get_address_details() that will crash the script.

>>> response = blockcypher.get_address_details("<invalid addr>")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\X\AppData\Local\Programs\Python\Python38-32\lib\site-packages\blockcypher\api.py", line 122, in get_address_details
    assert is_valid_address_for_coinsymbol(
AssertionError: <invalid addr>

This is rather inconvenient when iterating over a list of several addresses, if one happens to have a typo, be invalid etc. Would be easy to handle if the same dict["error"] was returned as in first example.

Please forgive if there's something simple I'm missing here.

[NoWay426]

Ah yes, I can see I need forgiveness for this one. Should've learned exception handling "Try" "Except" before posting this.

Leaving it up nonetheless, since the discrepancy between the module return vs request.get(url) return may be of value.

[quentinlesceller]

Thanks for the PR @NoWay426. Glad you managed to fix your issue. Closing.