Update PyPy jobs.

Backported changes from python-esdl.

Author: HexDecimal

.appveyor/install_python.ps1

@@ -10,7 +10,7 @@ if ($env:PYPY -or $env:PYPY3) {
     $env:PYPY = $env:PYPY + '-win32'
     $env:PYTHON = 'C:\' + $env:PYPY + '\' + $env:PYPY_EXE
     $env:PATH += ';' + 'C:\' + $env:PYPY + '\'
-    $PYPY_DOWNLOAD = 'https://bitbucket.org/pypy/pypy/downloads/' + $env:PYPY + '.zip'
+    $PYPY_DOWNLOAD = 'https://downloads.python.org/pypy/' + $env:PYPY + '.zip'
     Invoke-WebRequest $PYPY_DOWNLOAD -OutFile C:\pypy.zip
     & '7z' x C:\pypy.zip -oC:\
     & $env:PYTHON -m ensurepip
@@ -22,6 +22,6 @@ if ($env:WEB_PYTHON) {
     $env:PYTHON = 'C:\UserPython\python.exe'
 }
 & $env:PYTHON -m pip install --disable-pip-version-check --no-warn-script-location "virtualenv>=20"
-& $env:PYTHON -m virtualenv --download venv
+& $env:PYTHON -m virtualenv venv
 
 if($LastExitCode -ne 0) { $host.SetShouldExit($LastExitCode )  }

appveyor.yml

@@ -26,11 +26,9 @@ environment:
     platform: x64
   - PYTHON: C:\Python38\python.exe
     platform: Any CPU
-  - PYPY3: pypy3.6-v7.2.0
+  - PYPY3: pypy3.6-v7.3.2
     platform: Any CPU
-  - PYPY3: pypy3.6-v7.3.0
-    platform: Any CPU
-  - PYPY3: pypy3.6-v7.3.1
+  - PYPY3: pypy3.7-v7.3.2
     platform: Any CPU
 
 matrix:
@@ -48,7 +46,7 @@ install:
 - cmd: "set PATH=%APPVEYOR_BUILD_FOLDER%\\venv\\bin;%PATH%"
 - cmd: "set PATH=%PATH%;C:\\MinGW\\bin"
 - cmd: "python --version"
-- cmd: "pip --version"
+- cmd: "python -m pip install --upgrade pip"
 - cmd: "pip install --requirement requirements.txt"
 - cmd: "python -O setup.py build sdist develop bdist_wheel %EXTRA_SETUP_ARGS%"
 build: off