Shulou(Shulou.com)06/03 Report--

The addhosts project is nearing completion, and I'd like to know how many lines of code we've written.

I. demand

Count the number of lines of code in the py file under the source directory.

II. Script analysis

Get all the .py files in the specified directory and traverse the files

Read each file, traverse the contents of the file, and filter out blank lines and comments

III. Realization and results

# coding:utf-8import osclass StatLines (object): def _ init__ (self,path): self.path = path def stat_lines (self): file_list = os.listdir (self.path) os.chdir (self.path) total = 0 for file in file_list: if file.endswith ('.py'): lines = open (file Encoding='utf-8') .readlines () count = 0 for line in lines: if line = ='\ n': continue elif line.startswith ('#'): continue else: Count + = 1 total + = count print ('% s has% d lines'% (file) Count) print ('total lines is:% d'% total) if _ _ name__ = =' _ _ main__': sl = StatLines ('E:\\ Python_Project\\ addhost_v2\\ addhosts') sl.stat_lines ()

The running results are as follows:

IV. Summary

Question:

While executing open (file). Readlines (), the following error was encountered

"UnicodeDecodeError: 'gbk' codec can't decode byte 0xaf in position 548: illegal multibyte sequence"

Solution:

In open, after setting up encoding='utf-8', the problem is resolved.

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