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Fix Linux UCS2 using 2.7.13 with UCS4 instead of UCS2 sometimes

There were two versions of 2.7.13 installed on the system, so Pants would sometimes choose an unintended version and would be inconsistent.
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Eric-Arellano committed Feb 26, 2019
1 parent 8428376 commit 223541e372647f23548707f62308e50fc6c93848
Showing with 6 additions and 2 deletions.
  1. +6 −2 build-support/docker/travis_ci_py27_ucs2/Dockerfile
@@ -1,13 +1,17 @@
# Copyright 2019 Pants project contributors (see
# Licensed under the Apache License, Version 2.0 (see LICENSE).

# This file duplicates travis_ci/Dockerfile, except it installs Python 2.7 instaed of Python 3.6
# This file duplicates travis_ci/Dockerfile, except it installs Python 2.7 instead of Python 3.6
# and adds the env var PYTHON_CONFIGURE_OPTS to install it with UCS2.

# Use our custom Centos6 image for binary compatibility with old linux distros.
FROM pantsbuild/centos6:latest

# Note we use 2.7.15, rather than 2.7.13, as the centos6 image already comes with 2.7.13
# installed, which uses UCS4 instead of UCS2. By using 2.7.15, `` will set the interpreter
# constraints to `CPython==2.7.15` when bootstrapping the PEX, which will disambiguate the
# interpreter version and ensure we always use 2.7.15 with UCS2.
RUN yum install sqlite-devel -y
ENV PYENV_ROOT /pyenv-docker-build

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