导入错误：没有名为 win32com.client 的模块

Question

I am currently using python 2.7 and trying to open an Excel sheet. When using the code below:

import os
from win32com.client import Dispatch

xlApp = win32com.client.Dispatch("Excel.Application")
xlApp.Visible = True
# Open the file we want in Excel
workbook = xlApp.Workbooks.Open('example.xls')

I get this error:

ImportError: No module named win32com.client

Is there any possibility of getting the error since I am using 64-bit Windows machine?

Answer 1

pip install pywin32对我不起作用，但pypiwin32了。

Answer 2

win32com.client is a part of pywin32

So, download pywin32 from here

Answer 3

Try this command:

pip install pywin32

Note

If it gives the following error:

Could not find a version that satisfies the requirement pywin32>=223 (from pypiwin32) (from versions:)
No matching distribution found for pywin32>=223 (from pypiwin32)

upgrade 'pip', using:

pip install --upgrade pip

Answer 4

Try both pip install pywin32 and pip install pypiwin32 .

It works.

Answer 5

I realize this post is old but I wanted to add that I had to take an extra step to get this to work.

Instead of just doing:

pip install pywin32

I had use use the -m flag to get this to work properly. Without it I was running into an issue where I was still getting the error ImportError: No module named win32com .

So to fix this you can give this a try:

python -m pip install pywin32

This worked for me and has worked on several version of python where just doing pip install pywin32 did not work.

Versions tested on:

3.6.2, 3.7.6, 3.8.0, 3.9.0a1.

Answer 6

Had the exact same problem and none of the answers here helped me. Till I find this thread and post

Short: win32 modules are not guaranted to install correctly with pip. Install them directly from packages provided by developpers on github . It works like a charm.

Answer 7

You must install the package pywin32 :

pip install pywin32

After installation import win32com.client

Python has the “Python for Windows Extensions” package known as pywin32 that allows us to easily access Window's Component Object Model (COM) and control Microsoft applications.

Answer 8

Try to install the "pywin32" file, you can find in https://github.com/mhammond/pywin32/releases

Install the version that you use in your IDLE, and try to install, after you can open your project and compile another turn!

thanks !

Answer 9

in some cases where pywin32 is not the direct reference and other libraries require pywin32-ctypes to be installed; causes the "ImportError: No module named win32com" when application bundled with pyinstaller.

running following command solves on python 3.7 - pyinstaller 3.6

pip install pywin32==227

Answer 10

I'm using Visual Studio Code on a 64-bit laptop using Windows. I eventually got this to work! First install pywin32 as normal:

python -m pip install pywin32

If you're using Code Runner, you may need to make sure that you have the right path to your module in your code:

import sys
sys.path.append("C:\\_path_to_virtual_environment\\Lib\\site-packages\\")

import win32com.client as win32

Now change directory in your terminal windows to your scripts folder and run this:

python pywin32_postinstall.py -install

This will change your error message to say you're missing the win32api module. To get this, install this:

python -m pip install pypiwin32

I wouldn't say I had a profound insight what all these commands do, but it (finally) solved my problem!

Answer 11

ImportError: No module named win32com.client

1. Open Command prompt in admin mode

2. Install win32com.client

   a. By pip install method

    pip install win32 If this throws error: version of win32 not determined then try installing via b. By pypi install method

   b.By pypi install method

   python -m pip install pywin32

3. Add program path to the python path

Answer 12

Win32COM is (and was always) part of PyWin32 .

1. PyWin32

[GitHub]: mhammond/pywin32 - Python for Windows (pywin32) Extensions is a Python wrapper over WinAPI s).
Some documentation can be found at [ME.TimGolden]: Python for Win32 Extensions Help .

Lately, binaries ( .whl s) are published on [PyPI]: pywin32 (starting with v222 (from 20180121 ) - there are a couple of older records, but they don't contain any (useful) packages).

As many other software, it was previously hosted on [SourceForge]: mhammond - Python for Windows Extensions (binaries (( .exe ) installers) were released there as well - last one v221 (from 20170329 )).

2. PyPIWin32

Only exists on [PyPI]: pypiwin32 .

Currently (at answer time), there are only 3 versions:

1. v219 (from 20141203 ):

   • Contains .whl s for various Python versions

2. v220 (from 20170112 ):

   • Only contains .whl s for Python 3.6

3. v223 (from 20180226 ):

   • Only contains one .whl with no data (but having PyWin32 as a dependency)

Also check Mark Hammond's answer: [GitHub]: mhammond/pywin32 - Add CascadeWindows wrapper (@mhammond's comment) .

From the above, one can only conclude that PyPIWin32 was just a playground for testing the newly introduced .whl packaging scheme and (except 1 ^st version) is just garbage.

As a consequence:

Do NOT install PyPIWin32 ( pip install pypiwin32 )

Installing PyWin32 is all you need: python -m pip install pywin32 .

If it doesn't work after that, there are other issues.
Here are a couple of links with potential problems (and ways to overcome them), generic advices, and so on:

• [SO]: How to install a package for a specific Python version on Windows 10? (@CristiFati's answer)

• [SO]: PyCharm doesn't recognize installed module (@CristiFati's answer)

• [SO]: How to update pywin32 automatically? (@CristiFati's answer)

• [SO]: PyWin32 and Python 3.8.0 (@CristiFati's answer)

• [SO]: PyWin32 (226) and virtual environments (@CristiFati's answer)

• [SO]: Install win32com on MacOs and Linux (@CristiFati's answer)

• [SO]: Can't import dll module in Python (@CristiFati's answer)

• [SO]: Python Ctypes - loading dll throws OSError: [WinError 193] %1 is not a valid Win32 application (@CristiFati's answer)

Answer 13

I don't have any experience with this particular library (I'm just getting into it myself), but I did notice that you only imported the Dispatch class from the module. So you either need to just change your import as such:

import win32com.client

OR change your instance call like so:

xlApp = Dispatch("Excel.Application")