Python: String Operation

Strip /n

• line.strip() - remove all types of whitespaces from both ends of the line.
• line.rstrip("\n") remove only the trailing "\n".

Hitung banyak word

len(string.split())

Join Line

Pakai str.join:

with open('file.txt') as f:
    print " ".join(line.strip() for line in f)

Remove specific line

f = open("yourfile.txt","r")
lines = f.readlines()
f.close()

f = open("yourfile.txt","w")
for line in lines:
  if line!="nickname_to_delete"+"\n":
    f.write(line)
f.close()

Percobaan

namafile = "yourfile.txt"
f = open(namafile,"r")
lines = f.readlines()
f.close()

f = open(namafile,"w")
for line in lines:
  if len(line.split())>1:
    f.write(line)
f.close()

f = open(namafile,"r")
    print " ".join(line.strip() for line in f)
f.close()