From eefc2db1adcfdd9afc1955c81d73dc3d32c65a57 Mon Sep 17 00:00:00 2001
From: Oz N Tiram <oz.tiram@gmail.com>
Date: Sun, 9 Jan 2022 23:52:06 +0100
Subject: [PATCH] Remove vendored first

While first is nice to have, it adds a lot of code in vendor.
This patch achieves the same with less code in vendor (~80 lines less).
---
 pipenv/core.py              |  4 +-
 pipenv/vendor/first.LICENSE | 19 ---------
 pipenv/vendor/first.py      | 78 -------------------------------------
 pipenv/vendor/vendor.txt    |  1 -
 4 files changed, 2 insertions(+), 100 deletions(-)
 delete mode 100644 pipenv/vendor/first.LICENSE
 delete mode 100644 pipenv/vendor/first.py

diff --git a/pipenv/core.py b/pipenv/core.py
index 92811f74..1c04047c 100644
--- a/pipenv/core.py
+++ b/pipenv/core.py
@@ -2525,7 +2525,6 @@ def do_check(
     args=None,
     pypi_mirror=None
 ):
-    from first import first
     from pipenv.vendor.vistir.compat import JSONDecodeError
 
     if not system:
@@ -2569,7 +2568,8 @@ def do_check(
     if not system:
         python = project._which("python")
     else:
-        python = first(system_which(p) for p in ("python", "python3", "python2"))
+        interpreters = [system_which(p) for p in ("python", "python3", "python2")]
+        python = interpreters[0] if interpreters else None
     if not python:
         click.echo(crayons.red("The Python interpreter can't be found."), err=True)
         sys.exit(1)
diff --git a/pipenv/vendor/first.LICENSE b/pipenv/vendor/first.LICENSE
deleted file mode 100644
index a9c8c9db..00000000
--- a/pipenv/vendor/first.LICENSE
+++ /dev/null
@@ -1,19 +0,0 @@
-Copyright (c) 2012 Hynek Schlawack
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
diff --git a/pipenv/vendor/first.py b/pipenv/vendor/first.py
deleted file mode 100644
index 8cf9d2d1..00000000
--- a/pipenv/vendor/first.py
+++ /dev/null
@@ -1,78 +0,0 @@
-## -*- coding: utf-8 -*-
-
-"""
-first
-=====
-
-first is the function you always missed in Python.
-
-In the simplest case, it returns the first true element from an iterable:
-
->>> from first import first
->>> first([0, False, None, [], (), 42])
-42
-
-Or None if there is none:
-
->>> from first import first
->>> first([]) is None
-True
->>> first([0, False, None, [], ()]) is None
-True
-
-It also supports the passing of a key argument to help selecting the first
-match in a more advanced way.
-
->>> from first import first
->>> first([1, 1, 3, 4, 5], key=lambda x: x % 2 == 0)
-4
-
-:copyright: (c) 2012 by Hynek Schlawack.
-:license: MIT, see LICENSE for more details.
-
-"""
-
-__title__ = 'first'
-__version__ = '2.0.2'
-__author__ = 'Hynek Schlawack'
-__license__ = 'MIT'
-__copyright__ = 'Copyright 2012 Hynek Schlawack'
-
-
-def first(iterable, default=None, key=None):
-    """
-    Return first element of `iterable` that evaluates true, else return None
-    (or an optional default value).
-
-    >>> first([0, False, None, [], (), 42])
-    42
-
-    >>> first([0, False, None, [], ()]) is None
-    True
-
-    >>> first([0, False, None, [], ()], default='ohai')
-    'ohai'
-
-    >>> import re
-    >>> m = first(re.match(regex, 'abc') for regex in ['b.*', 'a(.*)'])
-    >>> m.group(1)
-    'bc'
-
-    The optional `key` argument specifies a one-argument predicate function
-    like that used for `filter()`.  The `key` argument, if supplied, must be
-    in keyword form.  For example:
-
-    >>> first([1, 1, 3, 4, 5], key=lambda x: x % 2 == 0)
-    4
-
-    """
-    if key is None:
-        for el in iterable:
-            if el:
-                return el
-    else:
-        for el in iterable:
-            if key(el):
-                return el
-
-    return default
diff --git a/pipenv/vendor/vendor.txt b/pipenv/vendor/vendor.txt
index 0530062e..3d7b39ea 100644
--- a/pipenv/vendor/vendor.txt
+++ b/pipenv/vendor/vendor.txt
@@ -10,7 +10,6 @@ colorama==0.4.4
 distlib==0.3.2
 docopt==0.6.2
 dparse==0.5.1
-first==2.0.2
 funcsigs==1.0.2
 idna==3.2
 importlib-metadata==4.6.1
-- 
2.32.0