No module named pefile

Today I want to build a python script to EXE file using PyInstaller. But after running PyInstaller, I got following error

No module named pefile

The full stack trace is

Traceback (most recent call last):
  File "D:\\PyInstaller\\pyinstaller.py", line 14, in <module>
    from PyInstaller.__main__ import run
  File "D:\PyInstaller\PyInstaller\__main__.py", line 21, in <module>
    import PyInstaller.building.build_main
  File "D:\PyInstaller\PyInstaller\building\build_main.py", line 34, in <module>

    from .api import PYZ, EXE, COLLECT, MERGE
  File "D:\PyInstaller\PyInstaller\building\api.py", line 38, in <module>
    from PyInstaller.utils.win32 import winmanifest, icon, versioninfo, winresource
  File "D:\PyInstaller\PyInstaller\utils\win32\versioninfo.py", line 17, in <module>
    import pefile
ImportError: No module named pefile

Starting from PyInstaller 3.2, a new module named pefile is introduced. This module is used to work with Windows binary file (EXE file, also called PE file). Before PyInstaller 3.2, PE related operation is done using its own module, like setting PE header and DOS header)

Solution

Assume the Python installation direcotry is C:\Python27.

Open Command Prompt window, and navigate to C:\Python27\Scripts

cd C:\Python27\Scripts

Then install pefile module using following command

pip install pefile

(pip is built into latest Python distribution, 2.7.12 for now)

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