python数据清洗excel

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python清洗excel的数据还是很简单的
这里就列举例子说一下
这是原始数据，这里要处理的是地区和薪水两个字段。

代码：

import xlrd
import codecs
import re

def get_salary(salary):
    # 利用正则表达式提取月薪，把待遇规范成千/月的形式
    # 返回最低工资，最高工资的形式
    if '-' in salary:  # 针对1-2万/月或者10-20万/年的情况，包含-
        low_salary = re.findall(re.compile('(\d*\.?\d+)'), salary)[0]
        high_salary = re.findall(re.compile('(\d?\.?\d+)'), salary)[1]
        if u'万' in salary and u'年' in salary:  # 单位统一成千/月的形式
            low_salary = float(low_salary) / 12 * 10
            high_salary = float(high_salary) / 12 * 10
        elif u'万' in salary and u'月' in salary:
            low_salary = float(low_salary) * 10
            high_salary = float(high_salary) * 10
    else:  # 针对20万以上/年和100元/天这种情况，不包含-，取最低工资，没有最高工资
        low_salary = re.findall(re.compile('(\d*\.?\d+)'), salary)[0]
        high_salary = ""
        if u'万' in salary and u'年' in salary:  # 单位统一成千/月的形式
            low_salary = float(low_salary) / 12 * 10
        elif u'万' in salary and u'月' in salary:
            low_salary = float(low_salary) * 10
        elif u'元' in salary and u'天' in salary:
            low_salary = float(low_salary) / 1000 * 21  # 每月工作日21天
    return low_salary, high_salary


def open_xlsx(file):
    # 加载Excel数据，获得工作表和行数
    data = xlrd.open_workbook(file) #读取工作表名称
    table0 = data.sheet_by_name('51') #读取 当前sheet表
    nrows = table0.nrows # 获取行数
    return table0, nrows


def main():

    table, nrows = open_xlsx('512.xlsx') # 调用打开excel的函数
    print('一共有{}行数据，开始清洗数据'.format(nrows))
    for i in range(1, nrows):
        job = table.row_values(i)[0]
        company = table.row_values(i)[1]
        companytype = table.row_values(i)[2]
        area = table.row_values(i)[3][:2]  # 地区取到城市，把区域去掉
        if area:
            area_list.append(area)
        experience = table.row_values(i)[4]
        degree = table.row_values(i)[5]
        salary = table.row_values(i)[6]
        if salary:  # 如果待遇这栏不为空，计算最低最高待遇
            getsalary = get_salary(salary)
            low_salary = getsalary[0]
            high_salary = getsalary[1]
        else:
            low_salary = high_salary = ""
        print('正在写入第{}条，最低工资是{}k,最高工资是{}k'.format(i, low_salary, high_salary))
        output = ('{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\n').format(job, company, companytype, area,
                                                                                   experience,degree, low_salary, high_salary
                                                                                  )
        f = codecs.open('51jobanaly.xls', 'a+')
        f.write(output)
        f.close()


if __name__ == '__main__':
    main()

主要把薪资处理成以千/月为单位。保留城市。
处理后的数据：