From 53b12376d1c7d781b4b357fb46921bc895d39d85 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sybren=20A=2E=20St=C3=BCvel?= <sybren@stuvel.eu>
Date: Tue, 4 Jun 2019 12:35:46 +0200
Subject: [PATCH] Revert "Use Python module to run Pip"

This reverts commit c457767edf814f92e1da8cb9d08fa52404ea074c. Modern pip
can no longer be used this way ('pip.main' does not exist).
---
 setup.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/setup.py b/setup.py
index ce9ca10..fa85a98 100755
--- a/setup.py
+++ b/setup.py
@@ -23,7 +23,6 @@ import shutil
 import subprocess
 import re
 import pathlib
-import pip
 import zipfile
 
 from distutils import log
@@ -122,8 +121,9 @@ class BuildWheels(Command):
 
     def download_wheel(self, requirement):
         """Downloads a wheel from PyPI and saves it in self.wheels_path."""
-        pip.main([
-            'download',
+
+        subprocess.check_call([
+            'pip', 'download',
             '--no-deps',
             '--dest', str(self.wheels_path),
             requirement[0]