python脚本 - 计算脚本中的代码行数答案

【问题标题】：python script - counting lines of code in the scriptpython脚本 - 计算脚本中的代码行数
【发布时间】：2016-05-06 07:27:10
【问题描述】：

我在我的树莓派上运行一个 python 脚本，我只是想知道是否有任何命令可以用来计算我的脚本中有多少行。

问候

【问题讨论】：

从脚本中？
您使用的是哪个编辑器？大多数编辑器都具有显示行号的功能，但默认情况下通常不会开启。
这是对 pi 的 shell 访问，我正在使用 nano .. wc -l 命令对其进行编辑：)

标签： python raspberry-pi raspbian lines-of-code

【解决方案1】：

您可以使用wc 命令：

wc -l yourScript.py

【讨论】：

【解决方案2】：

您可以get the path of the script being run 然后读取文件，计算所有既不为空也不以# 符号或''' 或""" 开头的行（所有这些都表示cmets）：

#!/usr/bin/env python3

'''
This script prints out all significant lines of code contained within 
itself.
'''

import os
import re

SINGLE_LINE_COMMENT_DELIMITER = "#"
MULTILINE_COMMENT_DELIMITER_PATTERN = re.compile("['\"]{3}")

class SignficantLineParser(object):
def __init__(self):
    self.in_comment_section = False

def parse(self, line):
    line = line.strip()
    if self.in_comment_section:
        if line.startswith(SINGLE_LINE_COMMENT_DELIMITER):
            return False
        else:
            if MULTILINE_COMMENT_DELIMITER_PATTERN.match(line):
                # Exiting multi-line comment
                self.in_comment_section = False             
    elif line:
        if line.startswith(SINGLE_LINE_COMMENT_DELIMITER):
            return False
        else:
            if MULTILINE_COMMENT_DELIMITER_PATTERN.match(line):
                # Entering multi-line comment
                self.in_comment_section = True
                return False
            else:
                return True
    else:
        return False


script_path = os.path.realpath(__file__)
with open(script_path, 'r') as inf:
    parser = SignficantLineParser()
    significant_lines = 0
    for line in inf:
        if parser.parse(line):
            significant_lines += 1
            print("Significant line: " + line, end="")

print("\n\nSignificant line count: %d" % significant_lines)

打印出来：

Significant line: import os
Significant line: import re
Significant line: SINGLE_LINE_COMMENT_DELIMITER = "#"
Significant line: MULTILINE_COMMENT_DELIMITER_PATTERN = re.compile("['\"]{3}")
Significant line: class SignficantLineParser(object):
Significant line:   def __init__(self):
Significant line:       self.in_comment_section = False
Significant line:   def parse(self, line):
Significant line:       line = line.strip()
Significant line:       if self.in_comment_section:
Significant line:           if line.startswith(SINGLE_LINE_COMMENT_DELIMITER):
Significant line:               return False
Significant line:           else:
Significant line:               if MULTILINE_COMMENT_DELIMITER_PATTERN.match(line):
Significant line:                   self.in_comment_section = False             
Significant line:       elif line:
Significant line:           if line.startswith(SINGLE_LINE_COMMENT_DELIMITER):
Significant line:               return False
Significant line:           else:
Significant line:               if MULTILINE_COMMENT_DELIMITER_PATTERN.match(line):
Significant line:                   self.in_comment_section = True
Significant line:                   return False
Significant line:               else:
Significant line:                   return True
Significant line:       else:
Significant line:           return False
Significant line: script_path = os.path.realpath(__file__)
Significant line: with open(script_path, 'r') as inf:
Significant line:   parser = SignficantLineParser()
Significant line:   significant_lines = 0
Significant line:   for line in inf:
Significant line:           if parser.parse(line):
Significant line:               significant_lines += 1
Significant line:               print("Significant line: " + line, end="")
Significant line: print("\n\nSignificant line count: %d" % significant_lines)

Significant line count: 35

【讨论】：

哦！谢谢你..虽然我想要的更简单；只有一个命令行。但是我不得不承认这给了我一个支持我的脚本的想法。谢谢你:)