update setuptools before installing (references #4)

Pyomo · Jun 26, 2016 · 717a6bc · 717a6bc
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commit 717a6bc
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diff --git a/appveyor.yml b/appveyor.yml
@@ -22,6 +22,7 @@ install:
   # We need wheel installed to build wheels
   - "SET PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"
   - "python --version"
+  - "python -m pip install -v -U pip setuptools"
   - "python -m pip install coverage"
   - "python -m pip install nose"
   - "dir %PYTHON%\\Scripts"