implements pages with error checking

pybraries/wrapper.py

@@ -114,7 +114,6 @@ def __check_prerelease(*args, **kwargs):
                 if r:
                     if r.status_code == 204:
                         response = f"Successfully unsubscribed from {package}"
-                        # print(f"Successfully unsubscribed from {kwargs['package']})
                     else:
                         response = r.json()
                     r.raise_for_status()
@@ -139,7 +138,7 @@ def __check_prerelease(*args, **kwargs):
                 url_end_list = url_end_list + more_args
 
             if thing == 'pproject_dependencies':
-                url_end_list.append("latest/")     # could make option to subscribe to other versions
+                url_end_list.append("latest")     # could make option to subscribe to other versions
                 url_end_list.append("dependencies")
 
             if thing == 'pproject_dependents':
@@ -529,10 +528,33 @@ def unsubscribe(self, *args, **kwargs):
         
         Returns:
             response (str or int): response header status from libraries.io
- 
         """
+
         return self.__call_api("delete_subscribe", *args, **kwargs)
+
+    def set_pages(self, per_page=30, page=1):
+        """
+        Change pagination settings.
+
+        Args:
+            per_page (int): default=30 number of items per page.  max=100
+            page (int): default=1 package name
+        
+        Returns:
+            response (str): message with pagination information
+        """
+
+        if not all(isinstance(i, int) for i in [page, per_page]):
+            raise TypeError("Must be an integer")
+        if page < 1:
+            raise ValueError("page must be an integer > 1")
+        if per_page > 100 or per_page < 1:
+            raise ValueError("perpage must be an integer between 1 and 100, inclusive")
+
+        sess.params['page'] = page          # 1 returns page 1 of results, 2 returns page 2, etc.
+        sess.params['per_page'] = per_page  # 30 is libraries api default, max is 100
 
+        return f"per_page set to {per_page} and page set to {page}."
 
 # From the command line you can call any public function by name with arguments
 if __name__ == "__main__":

tests/test_pybraries.py

@@ -212,3 +212,13 @@ def test_unsubscribe_unsubscribes():
     # check and make sure not subscribed
     pass
 
+
+def test_set_pages_page_return_type():
+    """call to set_pages returns a string"""
+    set_p = api.set_pages(page=1)
+    assert type(set_p) is str
+
+def test_set_pages_big_value():
+    """set_pages returns a value error for too large per_page argument"""
+    with pytest.raises(ValueError):
+        set_pages = api.set_pages(per_page=101)