Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/20473#discussion_r165527157
--- Diff: python/run-tests.py ---
@@ -151,6 +151,38 @@ def parse_opts():
return opts
+def _check_dependencies(python_exec, modules_to_test):
+ if "COVERAGE_PROCESS_START" in os.environ:
+ # Make sure if coverage is installed.
+ try:
+ subprocess_check_output(
+ [python_exec, "-c", "import coverage"],
+ stderr=open(os.devnull, 'w'))
+ except:
+ print_red("Coverage is not installed in Python executable '%s'
"
+ "but 'COVERAGE_PROCESS_START' environment variable
is set, "
+ "exiting." % python_exec)
+ sys.exit(-1)
+
+ if pyspark_sql in modules_to_test:
+ # If we should test 'pyspark-sql', it checks if PyArrow and Pandas
are installed and
+ # explicitly prints out. See SPARK-23300.
+ try:
+ subprocess_check_output(
+ [python_exec, "-c", "import pyarrow"],
+ stderr=open(os.devnull, 'w'))
+ except:
--- End diff --
Ah, hm. I believe we don't access to our main `pyspark` here. Let me check
if I can address your concern today (or late tonight KST).
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