feat(Basic): Allow single string URIs for countries

CONFIG.md

@@ -287,25 +287,23 @@ Service's GEOFENCE class property, but can also be explicitly used with `--proxy
 to use by prefixing it with the provider key name, e.g., `--proxy basic:de` or `--proxy nordvpn:de`. Some providers
 support specific query formats for selecting a country/server.
 
-### basic (list\[dict])
+### basic (dict[str, str|list])
 
 Define a mapping of country to proxy to use where required.  
 The keys are region Alpha 2 Country Codes. Alpha 2 Country Codes are `[a-z]{2}` codes, e.g., `us`, `gb`, and `jp`.  
 Don't get this mixed up with language codes like `en` vs. `gb`, or `ja` vs. `jp`.
 
-Do note that each key's value is not a string but a list or sequence.
-It will randomly choose which entry to use.
-
-For example,
+Do note that each key's value can be a list of strings, or a string. For example,
 
 ```yaml
 us:
   - "http://john%40email.tld:password123@proxy-us.domain.tld:8080"
   - "http://jane%40email.tld:password456@proxy-us.domain2.tld:8080"
-de:
-  - "http://127.0.0.1:8888"
+de: "https://127.0.0.1:8080"
 ```
 
+Note that if multiple proxies are defined for a region, then it will randomly choose which one to use.
+
 ### nordvpn (dict)
 
 Set your NordVPN Service credentials with `username` and `password` keys to automate the use of NordVPN as a Proxy

devine/core/proxies/basic.py

@@ -29,7 +29,10 @@ class Basic(Proxy):
         if not servers:
             return
 
-        proxy = random.choice(servers)
+        if isinstance(servers, str):
+            proxy = servers
+        else:
+            proxy = random.choice(servers)
 
         proxy = prepend_scheme_if_needed(proxy, "http")
         parsed_proxy = parse_url(proxy)