CODEWITHSUNDEEP
pythonnewline
Greg
Greg

Reputation: 257

String portion after variable in .write() being put on new line in Python

I am relatively new to Python. So please excuse my naivety. While trying to write a string to a file, the portion of the string after the variable is put on a new line and it should not be. I am using python 2.6.5 btw

arch = subprocess.Popen("info " + agent + " | grep '\[arch\]' | awk '{print $3}'", shell=True, stdout=subprocess.PIPE)
arch, err = arch.communicate()
strarch = str(arch)
with open ("agentInfo", "a") as info:
        info.write("Arch Bits: " + strarch + " bit")
        info.close()
os.system("cat agentInfo")

Desireded output:

"Arch Bits: 64 bit"

Actual output:

"Arch Bits: 64
bits"

Upvotes: 1

Views: 758

Answers (1)

Ashwini Chaudhary
Ashwini Chaudhary

Reputation: 251146

Looks like str(arch) has a trailing new line, you can remove that using str.strip or str.rstrip:

strarch = str(arch).strip()   #removes all types of white-space characters

or:

strarch = str(arch).rstrip('\n') #removes only trailing '\n'

And you can also use string formatting here:

strarch = str(arch).rstrip('\n')
info.write("{}: {} {}".format("Arch Bits", strarch, "bits"))

Note that there's no need of info.close(), with statement automatically closes the file for you.

Upvotes: 3

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