重复编辑：不，我这样做但是它不想启动firefox。 我正在做一个cortana / siri助手的事情，我想让它说我在说些什么时打开一个网页浏览器。所以我已经完成了if部分，但我只是需要它来启动firefox.exe我尝试了不同的东西，我得到一个错误。这是代码。请帮忙！它适用于打开记事本，但不适用于Firefox ..
#subprocess.Popen(['C:\Program Files\Mozilla Firefox\firefox.exe']) opens the app and continues the script
#subprocess.call(['C:\Program Files\Mozilla Firefox\firefox.exe']) this opens it but doesnt continue the script
import os
import subprocess
print "Hello, I am Danbot.. If you are new ask for help!" #intro
prompt = ">" #sets the bit that indicates to input to >
input = raw_input (prompt) #sets whatever you say to the input so bot can proces
raw_input (prompt) #makes an input
if input == "help": #if the input is that
print "*****************************************************************" #says that
print "I am only being created.. more feautrues coming soon!" #says that
print "*****************************************************************" #says that
print "What is your name talks about names" #says that
print "Open (name of program) opens an application" #says that
print "sometimes a command is ignored.. restart me then!"
print "Also, once you type in a command, press enter a couple of times.."
print "*****************************************************************" #says that
raw_input (prompt) #makes an input
if input == "open notepad": #if the input is that
print "opening notepad!!" #says that
print os.system('notepad.exe') #starts notepad
if input == "open the internet": #if the input is that
print "opening firefox!!" #says that
subprocess.Popen(['C:\Program Files\Mozilla Firefox\firefox.exe'])
答案 0 :(得分：9)
简短回答是os.system不知道在哪里找firefox.exe。
可能的解决方案是使用完整路径。建议使用subprocess模块：
import subprocess
subprocess.call(['C:\Program Files\Mozilla Firefox\\firefox.exe'])
在\\之前注意firefox.exe！如果您使用\f，Python会将其解释为换页符：
>>> print('C:\Program Files\Mozilla Firefox\firefox.exe')
C:\Program Files\Mozilla Firefox
irefox.exe
当然，这条路不存在。 ： - ）
因此要么转义反斜杠，要么使用原始字符串：
>>> print('C:\Program Files\Mozilla Firefox\\firefox.exe')
C:\Program Files\Mozilla Firefox\firefox.exe
>>> print(r'C:\Program Files\Mozilla Firefox\firefox.exe')
C:\Program Files\Mozilla Firefox\firefox.exe
请注意，使用os.system或subprocess.call将停止当前应用程序，直到启动的程序完成。因此，您可能希望使用subprocess.Popen。这将启动外部程序，然后继续脚本。
subprocess.Popen(['C:\Program Files\Mozilla Firefox\\firefox.exe', '-new-tab'])
这将打开firefox（或在正在运行的实例中创建一个新选项卡）。
更完整的示例是我通过github发布的open实用程序。这使用正则表达式来匹配程序的文件扩展名以打开这些文件。然后它使用subprocess.Popen在适当的程序中打开这些文件。作为参考，我在下面添加当前版本的完整代码。
请注意，此程序是在考虑使用类UNIX操作系统的情况下编写的。在ms-windows上，您可能会从注册表中获取文件类型的应用程序。
"""Opens the file(s) given on the command line in the appropriate program.
Some of the programs are X11 programs."""
from os.path import isdir, isfile
from re import search, IGNORECASE
from subprocess import Popen, check_output, CalledProcessError
from sys import argv
import argparse
import logging
__version__ = '1.3.0'
# You should adjust the programs called to suit your preferences.
filetypes = {
'\.(pdf|epub)$': ['mupdf'],
'\.html$': ['chrome', '--incognito'],
'\.xcf$': ['gimp'],
'\.e?ps$': ['gv'],
'\.(jpe?g|png|gif|tiff?|p[abgp]m|svg)$': ['gpicview'],
'\.(pax|cpio|zip|jar|ar|xar|rpm|7z)$': ['tar', 'tf'],
'\.(tar\.|t)(z|gz|bz2?|xz)$': ['tar', 'tf'],
'\.(mp4|mkv|avi|flv|mpg|movi?|m4v|webm)$': ['mpv']
}
othertypes = {'dir': ['rox'], 'txt': ['gvim', '--nofork']}
def main(argv):
"""Entry point for this script.
Arguments:
argv: command line arguments; list of strings.
"""
if argv[0].endswith(('open', 'open.py')):
del argv[0]
opts = argparse.ArgumentParser(prog='open', description=__doc__)
opts.add_argument('-v', '--version', action='version',
version=__version__)
opts.add_argument('-a', '--application', help='application to use')
opts.add_argument('--log', default='warning',
choices=['debug', 'info', 'warning', 'error'],
help="logging level (defaults to 'warning')")
opts.add_argument("files", metavar='file', nargs='*',
help="one or more files to process")
args = opts.parse_args(argv)
logging.basicConfig(level=getattr(logging, args.log.upper(), None),
format='%(levelname)s: %(message)s')
logging.info('command line arguments = {}'.format(argv))
logging.info('parsed arguments = {}'.format(args))
fail = "opening '{}' failed: {}"
for nm in args.files:
logging.info("Trying '{}'".format(nm))
if not args.application:
if isdir(nm):
cmds = othertypes['dir'] + [nm]
elif isfile(nm):
cmds = matchfile(filetypes, othertypes, nm)
else:
cmds = None
else:
cmds = [args.application, nm]
if not cmds:
logging.warning("do not know how to open '{}'".format(nm))
continue
try:
Popen(cmds)
except OSError as e:
logging.error(fail.format(nm, e))
else: # No files named
if args.application:
try:
Popen([args.application])
except OSError as e:
logging.error(fail.format(args.application, e))
def matchfile(fdict, odict, fname):
"""For the given filename, returns the matching program. It uses the `file`
utility commonly available on UNIX.
Arguments:
fdict: Handlers for files. A dictionary of regex:(commands)
representing the file type and the action that is to be taken for
opening one.
odict: Handlers for other types. A dictionary of str:(arguments).
fname: A string containing the name of the file to be opened.
Returns: A list of commands for subprocess.Popen.
"""
for k, v in fdict.items():
if search(k, fname, IGNORECASE) is not None:
return v + [fname]
try:
if b'text' in check_output(['file', fname]):
return odict['txt'] + [fname]
except CalledProcessError:
logging.warning("the command 'file {}' failed.".format(fname))
return None
if __name__ == '__main__':
main(argv)
答案 1 :(得分：0)
如果您想打开Google或其他网上内容，只需import webbrowser并打开URL。我给你一个简单的例子。
import webbrowser
webbrowser.open("www.google.com")