def is_devserver():
    return os.getenv('SERVER_SOFTWARE', '').startswith('Dev')
Test write_datetime with explicit date format.
dataset/ETHPy150Open GoogleCloudPlatform/cloud-pubsub-samples-python/appengine-push/pubsub_utils.py/is_devserver--crossover with--dataset/ETHPy150Open jmcnamara/XlsxWriter/xlsxwriter/test/comparison/test_default_date_format01.py/TestCompareXLSXFiles.test_create_file_user_date_format