How python uses isalpha to determine whether all characters in a string are letters

This article mainly introduces how python uses isalpha to judge whether all characters in a string are letters, which has a certain reference value. Interested friends can refer to it. I hope you can learn a lot after reading this article.

Isalpha determines whether all characters in a string are letters.

# a.isalpha () # determines whether all characters in the string are letters s = 'jack ma\ n' S1 = 'jack ma's2 =' Jack's3 = 'jack25's4 =''# # empty string also returns Falses_new = s.isalpha () s1_new = s1.isalpha () s2_new = s2.isalpha () s3_new = s3.isalpha () s4_new = s4.isalpha () print (s_new) print (s1_ New) print (s2_new) print (s3_new) print (s4_new) output: what are the common libraries in FalseFalseTrueFalseFalsepython? common libraries in python: 1.requesuts 2.scrapyters3.pillowblows4.twistedters5.numpyters6.matplotlibter7.pygamatransfer8.ipyhton, etc.

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