Why java -version
gives empty string when executing in subprocess.Popen
. Is there any alternative to get the exact text given by java -version
command in Linux?
version = ["java","-version"] temp1 = subprocess.Popen(version, stdout=subprocess.PIPE) ver = str(temp1.communicate()) print ver
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Answer
I think you are getting some error so capture the stderr from the process.
version = ["java","-version"] temp1=subprocess.Popen(version, stdout=subprocess.PIPE, stderr=subprocess.PIPE) output, error = temp1.communicate()
Then try to print the error.