import csv
import subprocess
try:
tl_out = subprocess.check_output(["tasklist", "/fo", "csv", "/v"])
except subprocess.CalledProcessError as e:
print("Call to `tasklist` failed: {}".format(e))
exit(1)
tl_csv = csv.DictReader(tl_out.splitlines())
for row in tl_csv:
print(row) # prints a dict for each task with all available fields
# Available fields (may vary from platform to platform) are:
# 'Status', 'CPU Time', 'Image Name', 'Session Name', 'Window Title',
# 'PID', 'User Name', 'Session#', 'Mem Usage'
s1 = "\r\r\n\r\r\n".encode()
s2 = "\r\r\n".encode()
for task in wmi_out.strip().split(s1):
wmi_entries.append(dict(e.split("=".encode(), 1) for e in task.strip().split(s2)))
import subprocess
import win32api
# gets executable description via W32API
def get_executable_desc(path, default=''):
try:
language, codepage = win32api.GetFileVersionInfo(path, "\\VarFileInfo\\Translation")[0]
return win32api.GetFileVersionInfo(path, "\\StringFileInfo\\{:04x}{:04x}\\FileDescription".format(language, codepage)) or default
except:
return default
try:
wmi_out = subprocess.check_output(["wmic", "process", "list", "full", "/format:list"])
except subprocess.CalledProcessError as e:
print("Call to `tasklist` failed: {}".format(e))
exit(1)
# parse the WMI list:
wmi_entries = []
for task in wmi_out.strip().split("\r\r\n\r\r\n"):
entry = dict(e.split("=", 1) for e in task.strip().split("\r\r\n"))
entry['Description'] = get_executable_desc(entry.get("ExecutablePath", None), entry.get("Description", None))
wmi_entries.append(entry)
for row in wmi_entries:
print(row) # prints a dict for each task with all available fields
from win32api import GetFileVersionInfo, OpenProcess
from win32con import PROCESS_QUERY_INFORMATION, PROCESS_VM_READ
from win32process import EnumProcesses, EnumProcessModules, GetModuleFileNameEx
import pywintypes
# gets executable description via W32API
def get_executable_desc(path, default=''):
try:
language, codepage = GetFileVersionInfo(path, "\\VarFileInfo\\Translation")[0]
return GetFileVersionInfo(path, "\\StringFileInfo\\{:04x}{:04x}\\FileDescription".format(language, codepage)) or default
except:
return default
# gets the process list via W32API
def get_process_list():
proc_list = []
processes = EnumProcesses()
if not processes:
return [] # optionally raise an exception, no ProcessIds could be obtained
for proc in processes:
try:
handle = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, pywintypes.FALSE, proc)
modules = EnumProcessModules(handle)
if not modules:
continue # task died in the meantime?
path = GetModuleFileNameEx(handle, modules[0])
proc_list.append({"ProcessId": proc, "ExecutablePath": path, "Description": get_executable_desc(path, path)})
except pywintypes.error as e:
continue # optionally report the error stored in `e`
return proc_list
tasks = get_process_list()
for row in tasks:
print(row) # prints a dict for each task with ProcessId, ExecutablePath and Description fields
这比你想象的要复杂一点,你真的需要一个很好的理由去经历所有的麻烦来证明它的合理性。首先,任务管理器UI不会从
tasklist.exe
获取其信息,尽管您可以通过以下方式获得:但是,要想访问
^{pr2}$Description
字段(以及任务管理器UI中的许多其他字段),至少必须从WMI中提取数据。更糟糕的是,WMIC
上的Windows 7 has a bug when exporting to CSV使得整个过程更加复杂,为了最大限度地提高可移植性,我们需要使用list
格式并自己解析:Python3的代码更新(使用encode进行字节搜索):
如果您不需要所有这些字段,您可以始终限制
wmic
来获得您想要的字段(即wmi_out = subprocess.check_output(["wmic", "process", "get", "ProcessId,ExecutablePath,Description", "/format:list"])
只获得Description
每ProcessId
)。在但别以为你的麻烦结束了-我们才刚刚开始。虽然我们现在有了
Description
字段(还有一些其他要启动的字段),但是您会注意到,对于那些没有声明其描述的进程(大多数进程,Windows程序员显然很懒)或没有描述的服务,description值只包含可执行文件的名称,例如,如果您运行的是普通的旧记事本,虽然任务管理器UI将向您显示Notepad
作为说明,但它的字典条目将具有notepad.exe
-这是因为任务管理器UI对任务列表使用了完全不同的方法,并直接从流程可执行文件中获取描述。在因此,您实际上需要一个额外的步骤来直接从其资源表中检索可执行描述,这可能是通过调用Win32 API来获取描述的“最简单”方法,因此您需要首先安装pyWin32模块:
瞧!现在已经填充了描述(如果可用,或者至少保存可执行文件名),但是由于我们必须使用Win32 API来获取描述,我们还可以通过它获得任务列表-它更快、更简洁:
这将只获得ProcessId、ExecutablePath和Description,但是如果需要更多字段,可以进一步探索win32api。在
同样,我不知道
Description
字段要经历所有这些麻烦的值是什么,但是如果您真的非常想要它-这就是如何获得它的方法。在相关问题 更多 >
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