No connection adapters were found for (!r)

Package:

requests

45920

Exception Class:

InvalidSchema

Raise code

""" 
        """
        for (prefix, adapter) in self.adapters.items():

            if url.lower().startswith(prefix.lower()):
                return adapter

        # Nothing matches :-/
        raise InvalidSchema("No connection adapters were found for {!r}".format(url))

    def close(self):
        """Closes all adapters and as such the session"""
        for v in self.adapters.values():
            v.close()

    def mount(self, prefix, adapter):

Comment explaining raise

Nothing matches :-/

Links to the raise (1)

https://github.com/psf/requests/blob/f6d43b03fbb9a1e75ed63a9aa15738a8fce99b50/requests/sessions.py#L742

Ways to fix

Dec 30, 2021

zaytcev1976 2

Steps to reproduce:

Step 1: Create a new directory using the command

$ mkdir test-requests

Step 2: Navigate to that directory using the command

$ cd test-requests

Step 3: Run the following command

$ pipenv shell

Step 4: Install the dependencies in a virtual environment using the command

$ pipenv install requests

Step 5: Run the following code to reproduce the exception

import requests

requests.get("'https://google.com'") # notice the incorrect use of quotes

The above code generates the following exception:

---------------------------------------------------------------------------
InvalidSchema                             Traceback (most recent call last)
<ipython-input-53-71a1cbef6f17> in <module>()
      1 import requests
      2 
----> 3 requests.get("'https://google.com'")

/usr/local/lib/python3.7/dist-packages/requests/sessions.py in get_adapter(self, url)
    726 
    727         # Nothing matches :-/
--> 728         raise InvalidSchema("No connection adapters were found for {!r}".format(url))
    729 
    730     def close(self):

InvalidSchema: No connection adapters were found for "'https://google.com'"

Fixed version of code:

import requests

requests.get("https://google.com")

Jun 18, 2021

umangtaneja98 885

Add a possible fix

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