Add missing definitions to requests.utils (#3567)

Added:
+ DEFAULT_PORTS
+ extract_zipped_paths
+ select_proxy
+ rewind_body

third_party/2and3/requests/utils.pyi

@@ -14,11 +14,13 @@ InvalidURL = exceptions.InvalidURL
 
 NETRC_FILES: Any
 DEFAULT_CA_BUNDLE_PATH: Any
+DEFAULT_PORTS: Any
 
 def dict_to_sequence(d): ...
 def super_len(o): ...
 def get_netrc_auth(url): ...
 def guess_filename(obj): ...
+def extract_zipped_paths(path): ...
 def from_key_val_list(value): ...
 def to_key_val_list(value): ...
 def parse_list_header(value): ...
@@ -43,6 +45,7 @@ def is_valid_cidr(string_network): ...
 def set_environ(env_name, value): ...
 def should_bypass_proxies(url): ...
 def get_environ_proxies(url): ...
+def select_proxy(url, proxies): ...
 def default_user_agent(name=...): ...
 def default_headers(): ...
 def parse_header_links(value): ...
@@ -51,3 +54,4 @@ def prepend_scheme_if_needed(url, new_scheme): ...
 def get_auth_from_url(url): ...
 def to_native_string(string, encoding=...): ...
 def urldefragauth(url): ...
+def rewind_body(prepared_request): ...