--- a/env/lib/python3.7/site-packages/urllib3/util/request.py	Thu May 14 16:47:39 2020 -0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,135 +0,0 @@
-from __future__ import absolute_import
-from base64 import b64encode
-
-from ..packages.six import b, integer_types
-from ..exceptions import UnrewindableBodyError
-
-ACCEPT_ENCODING = "gzip,deflate"
-try:
-    import brotli as _unused_module_brotli  # noqa: F401
-except ImportError:
-    pass
-else:
-    ACCEPT_ENCODING += ",br"
-
-_FAILEDTELL = object()
-
-
-def make_headers(
-    keep_alive=None,
-    accept_encoding=None,
-    user_agent=None,
-    basic_auth=None,
-    proxy_basic_auth=None,
-    disable_cache=None,
-):
-    """
-    Shortcuts for generating request headers.
-
-    :param keep_alive:
-        If ``True``, adds 'connection: keep-alive' header.
-
-    :param accept_encoding:
-        Can be a boolean, list, or string.
-        ``True`` translates to 'gzip,deflate'.
-        List will get joined by comma.
-        String will be used as provided.
-
-    :param user_agent:
-        String representing the user-agent you want, such as
-        "python-urllib3/0.6"
-
-    :param basic_auth:
-        Colon-separated username:password string for 'authorization: basic ...'
-        auth header.
-
-    :param proxy_basic_auth:
-        Colon-separated username:password string for 'proxy-authorization: basic ...'
-        auth header.
-
-    :param disable_cache:
-        If ``True``, adds 'cache-control: no-cache' header.
-
-    Example::
-
-        >>> make_headers(keep_alive=True, user_agent="Batman/1.0")
-        {'connection': 'keep-alive', 'user-agent': 'Batman/1.0'}
-        >>> make_headers(accept_encoding=True)
-        {'accept-encoding': 'gzip,deflate'}
-    """
-    headers = {}
-    if accept_encoding:
-        if isinstance(accept_encoding, str):
-            pass
-        elif isinstance(accept_encoding, list):
-            accept_encoding = ",".join(accept_encoding)
-        else:
-            accept_encoding = ACCEPT_ENCODING
-        headers["accept-encoding"] = accept_encoding
-
-    if user_agent:
-        headers["user-agent"] = user_agent
-
-    if keep_alive:
-        headers["connection"] = "keep-alive"
-
-    if basic_auth:
-        headers["authorization"] = "Basic " + b64encode(b(basic_auth)).decode("utf-8")
-
-    if proxy_basic_auth:
-        headers["proxy-authorization"] = "Basic " + b64encode(
-            b(proxy_basic_auth)
-        ).decode("utf-8")
-
-    if disable_cache:
-        headers["cache-control"] = "no-cache"
-
-    return headers
-
-
-def set_file_position(body, pos):
-    """
-    If a position is provided, move file to that point.
-    Otherwise, we'll attempt to record a position for future use.
-    """
-    if pos is not None:
-        rewind_body(body, pos)
-    elif getattr(body, "tell", None) is not None:
-        try:
-            pos = body.tell()
-        except (IOError, OSError):
-            # This differentiates from None, allowing us to catch
-            # a failed `tell()` later when trying to rewind the body.
-            pos = _FAILEDTELL
-
-    return pos
-
-
-def rewind_body(body, body_pos):
-    """
-    Attempt to rewind body to a certain position.
-    Primarily used for request redirects and retries.
-
-    :param body:
-        File-like object that supports seek.
-
-    :param int pos:
-        Position to seek to in file.
-    """
-    body_seek = getattr(body, "seek", None)
-    if body_seek is not None and isinstance(body_pos, integer_types):
-        try:
-            body_seek(body_pos)
-        except (IOError, OSError):
-            raise UnrewindableBodyError(
-                "An error occurred when rewinding request body for redirect/retry."
-            )
-    elif body_pos is _FAILEDTELL:
-        raise UnrewindableBodyError(
-            "Unable to record file position for rewinding "
-            "request body during a redirect/retry."
-        )
-    else:
-        raise ValueError(
-            "body_pos must be of type integer, instead it was %s." % type(body_pos)
-        )