Python 脚本不会从 .bat 文件、任务计划程序或 cmd 提示符运行

Question

我有一个 Python 脚本，它在从 Eclipse、IDLE 运行时效果很好，双击目录文件夹中的 .py 文件。 我需要自动执行此操作以每晚运行，但无法从 Windows 任务计划程序运行它，因此我编写了一个 .bat 文件，但它也不起作用。

蟒蛇脚本：

import urllib.request
import time
from lxml import etree
import datetime
import csv
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders

today = datetime.date.today()
ts = int(time.time()) - 86400
tsend = int(time.time())
#ts = 1461253877
#tsend = 1461340277

dailyReport = "URL_GOES_HERE".format(ts, tsend)

with urllib.request.urlopen(dailyReport) as url:
    soup = url.read()
saveFile = open('{}_dailyIdleReport.xml'.format(today),'wb')
saveFile.write(soup)
saveFile.close()

tree = etree.parse('{}_dailyIdleReport.xml'.format(today))
root = tree.getroot()
print(root.tag, root.attrib)

zonarFile = open('{}_idleReport.csv'.format(today),'w', newline='')
outputWriter = csv.writer(zonarFile)
outputWriter.writerow(['Asset ID', 'Event Type', 'Idle Length', 'Cost'])

for assetidle in root.findall('assetidle'):
    for element in assetidle:
        for event in assetidle.findall('event'):
            fleet = assetidle.get('fleet')
            eventtype = event.get('type')
            length = event.find('length').text
            tlength = length
            (h, m, s) = tlength.split(':')
            result = ((float(h)/1) + (float(m)/60) + (float(s)/3600))
            cost = (result * 1.5) * 1.80
            displayCost = '${:,.2f}'.format(cost)            
            zonarFile = open('{}_idleReport.csv'.format(today),'a', newline='')
            outputWriter = csv.writer(zonarFile)
            outputWriter.writerow([fleet,eventtype,length,displayCost])
            zonarFile.close()            
            #print('Asset #:  %s  %s  %s  %s' %(fleet,eventtype,length,displayCost))

fromaddr = "myemail@server.com"
toaddr = "myemail@server.com"
msg = MIMEMultipart()
msg['From'] = fromaddr
msg['To'] = toaddr
msg['Subject'] = "The Zonar %s" %'{}_idleReport.csv'.format(today)
body = "The Zonar Daily Idle Report is attached."

filename = "{}_idleReport.csv".format(today)
attachment = open("C:\\Users\\PeggyBall\\workspace\\ZonarCSCProject\\src\\{}_idleReport.csv".format(today), "rb")

part = MIMEBase('application', 'octet-stream')
part.set_payload((attachment).read())
encoders.encode_base64(part)
part.add_header('Content-Disposition', "attachment; filename= %s" % filename)
body = "The Zonar Idle Report for {} is attached.".format(today)
msg.attach(MIMEText(body, 'plain'))
msg.attach(part)

server = smtplib.SMTP('smtp.email.serverhere', 587)
server.ehlo()
server.starttls()
server.ehlo()
server.login("email_username", "email_password")
text = msg.as_string()
server.sendmail(fromaddr, toaddr, text)

当前 .bat 文件：

@echo off
c:\Users\PeggyBall\AppData\Local\Programs\Python\Python35\python.exe c:\Users\PeggyBall\workspace\ZonarCSCProject\src\DailyIdleReport.py
pause

.bat 文件上方的 CMD 输出（此输出是预期的，但 .xml 和 .csv 文件从未从 .bat 创建）：

eventlist {'end': '1461716317', 'ver': '1', 'count': '38', 'start': '1461629917'}
Press any key to continue . . .

以前不起作用的 .bat 文件：

@echo off
C:\Users\PeggyBall\workspace\ZonarCSCProject\src\DailyIdleReport.py %*
pause

@echo off
C:\Users\PeggyBall\AppData\Local\Programs\Python\Python35\python.exe C:\Users\PeggyBall\workspace\ZonarCSCProject\src\DailyIdleReport.py %*
pause

这是错误消息：

eventlist {'ver': '1', 'end': '1461624597', 'count': '33', 'start': '1461538197'}
Traceback (most recent call last):
  File "C:\Users\PeggyBall\workspace\ZonarCSCProject\src\DailyIdleReport.py", line 68, in <module>
    attachment = open("C:\\Users\\PeggyBall\\workspace\\ZonarCSCProject\\src\\idleReport.csv","rb")
FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\PeggyBall\\workspace\\ZonarCSCProject\\src\\idleReport.csv'
Press any key to continue . . .

我已将双 \\ 删除为单个 \\ 但这也不起作用。 任何建议将不胜感激。

谢谢！

Answer 1

考虑在所有文件中指定一个绝对路径。 目前，在您的外部文件的open()中，假设相对路径，如果批处理文件和命令行在外部运行，这将是有问题的。

尝试将 .xml 和 .csv 文件保存到 .py 脚本的当前路径，任何对 .py（IDE 或命令行）的调用都将使用这样的绝对路径。 下面使用os.path.join()来连接目录和文件名。 此功能与平台无关（Windows、Mac、Linux），避免了反斜杠或正斜杠需求，并且在部署到其他用户时工作，因为没有设置硬编码路径。

import os
...

# CURRENT DIRECTORY OF RUNNING SCRIPT
cd = os.path.dirname(os.path.abspath(__file__))

# EXTERNAL FILE NAMES
xmlfile = os.path.join(cd, '{}_dailyIdleReport.xml'.format(today))
csvfile = os.path.join(cd, '{}_idleReport.csv'.format(today))

with urllib.request.urlopen(dailyReport) as url:
    soup = url.read()
saveFile = open(xmlfile, 'wb')
saveFile.write(soup)
saveFile.close()

tree = etree.parse(xmlfile)
root = tree.getroot()
print(root.tag, root.attrib)

zonarFile = open(csvfile,'w', newline='')
outputWriter = csv.writer(zonarFile)
outputWriter.writerow(['Asset ID', 'Event Type', 'Idle Length', 'Cost'])

for assetidle in root.findall('assetidle'):
    for element in assetidle:
        for event in assetidle.findall('event'):
            ...
            zonarFile = open(csvfile, 'a', newline='')

...
# ATTACHMENT
attachment = open(csvfile, "rb")