Merge branch 'pip-tools-integration'

* pip-tools-integration:
  Support of pip 19.0
  Update all pypi.python.org URLs to pypi.org

.appveyor.yml

@@ -2,15 +2,18 @@ branches: {only: [master, test]}
 environment:
   matrix:
     - TOXENV: py37-pipmaster
+    - TOXENV: py37-pip190
     - TOXENV: py37-pip181
     - TOXENV: py37-pip10
     - TOXENV: py36-pipmaster
+    - TOXENV: py36-pip190
     - TOXENV: py36-pip180
     - TOXENV: py36-pip10
     - TOXENV: py36-pip9
     - TOXENV: py35-pip9
     - TOXENV: py34-pip9
     - TOXENV: py34-pip8
+    - TOXENV: py27-pip190
     - TOXENV: py27-pip181
     - TOXENV: py27-pip10
     - TOXENV: py27-pip9

prequ/repositories/pypi.py

@@ -7,6 +7,9 @@
 from contextlib import contextmanager
 from shutil import rmtree
 
+import pip
+import pkg_resources
+
 from .._compat import TemporaryDirectory
 from .._log_utils import collect_logs
 from .._pip_compat import (
@@ -49,14 +52,19 @@ def __init__(self, pip_options, session):
         if pip_options.no_index:
             index_urls = []
 
-        self.finder = PackageFinder(
-            find_links=pip_options.find_links,
-            index_urls=index_urls,
-            trusted_hosts=pip_options.trusted_hosts,
-            allow_all_prereleases=pip_options.pre,
-            process_dependency_links=pip_options.process_dependency_links,
-            session=self.session,
-        )
+        finder_kwargs = {
+            "find_links": pip_options.find_links,
+            "index_urls": index_urls,
+            "trusted_hosts": pip_options.trusted_hosts,
+            "allow_all_prereleases": pip_options.pre,
+            "session": self.session,
+        }
+
+        # pip 19.0 has removed process_dependency_links from the PackageFinder constructor
+        if pkg_resources.parse_version(pip.__version__) < pkg_resources.parse_version('19.0'):
+            finder_kwargs["process_dependency_links"] = pip_options.process_dependency_links
+
+        self.finder = PackageFinder(**finder_kwargs)
 
         # Caches
         # stores project_name => InstallationCandidate mappings for all

tox.ini

@@ -3,7 +3,7 @@ envlist =
     style
     packaging
     requirements
-    py{27,34,35,36,37,py}-pip{8,9,10,180,181,master}
+    py{27,34,35,36,37,py}-pip{8,9,10,180,181,190,master}
 
 [testenv]
 deps =
@@ -12,6 +12,7 @@ deps =
     pip10: pip~=10.0
     pip180: pip~=18.0.0
     pip181: pip~=18.1.0
+    pip190: pip~=19.0.0
     -rrequirements-test.txt
 setenv =
     pip_install=python -m pip install