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Testers must use the following environment settings to properly test their applications against Python 2.7.13:
Configuring LCLS production environment for testing
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Method 1
If you would like full control over your user environment settings, use the following instructions.
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The following instructions assume that you are using the Bash shell, and that $LCLS${LCLS_ROOT}=/usr/local/lcls. Steps 1-4 are required. |
Add the new Python path to your environment:
export PYTHON_ROOT=${LCLS_ROOT}/package/python/python2.7.13/linux-x86_64
- Add the new Python binaries to the PATH environment variable:
export PATH=${QT_HOME}/bin:${ORACLE_HOME}/bin:${PYTHON_ROOT}/bin:${PATH}
- Add the new Python libraries and their dependencies (EPICS R3-14-12 64-bit, Matlab2016bMatlab, etc.) to the LD_LIBRARY_PATH environment variable. This is to ensure that the new 64-bit versions of Python modules built against those dependencies will work:
export LD_LIBRARY_PATH=${LCLS_ROOT}/matlab/2016b/extern/lib:${EPICS_BASE_RELEASE}/lib/linux-x86_64:${EPICS_EXTENSIONS}/lib/linux-x86_64:${EPICS_BASE_TOP}/base-cpp-R4-6-0/lib/linux-x86_64:${PYTHON_ROOT}/lib:${PYTHON_ROOT}/build/Python2.7.13/Lib:${LD_LIBRARY_PATH}
- Clear the PYTHONPATH environment variable. This is to ensure that there are no false positives when testing applications, since PYTHONPATH may still have access to older versions of Python modules:
export PYTHONPATH=
[Optional] If your application(s) import the "cx_Oracle" module, change/set your ORACLE_HOME environment variable to the followingadd/change the following in your environment:
export ORACLE_HOME= ${LCLS_ROOT} /package/oracle/product/ 11 . 2 . 0 . 2 .0_x86_64/client_1export PATH=${ORACLE_HOME}/bin:${PATH}
export LD_LIBRARY_PATH=${ORACLE_HOME}/lib:${LD_LIBRARY_PATH}
[Optional] If your application(s) import "PyQt", "PyQwt", or any other Python modules that depend on Qt, add/change the following in your environment:
export QT_HOME=${LCLS_ROOT}/package/Qt/Qt-4.8.6/linux-x86_64
export PATH=${QT_HOME}/bin:${PATH}
export LD_LIBRARY_PATH=${QT_HOME}/lib:${LD_LIBRARY_PATH}
Method 2
If you would like to use the full Python 2.7.13 64-bit environment and all of its dependencies, invoke or copy the lines in the following setup script provided in $TOOLS/script:source /usr/local/lcls/tools/script/go_python2.7.13.bash
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The script above may introduce duplicate paths into your environment settings. Be aware of your environment settings before and after testing your Python applications. |