Python: Error when import OpenSSL

问题:

I am learning Scrapy, from Scrapy's docs http://doc.scrapy.org/en/1.0/intro/overview.html I input

scrapy runspider stackoverflow_spider.py -o top-stackoverflow-questions.json

and cmd prompt

ImportError: DLL load failed: %1 is not a valid Win32 application.

Details:

C:\Users\jiahao>scrapy runspider stackoverflow_spider.py -o top-stackoverflow-qu estions.json Traceback (most recent call last):   File "c:\python27\lib\runpy.py", line 162, in _run_module_as_main     "__main__", fname, loader, pkg_name)   File "c:\python27\lib\runpy.py", line 72, in _run_code     exec code in run_globals   File "C:\Python27\Scripts\scrapy.exe\__main__.py", line 9, in <module>   File "c:\python27\lib\site-packages\scrapy\cmdline.py", line 122, in execute     cmds = _get_commands_dict(settings, inproject)   File "c:\python27\lib\site-packages\scrapy\cmdline.py", line 46, in _get_comma nds_dict     cmds = _get_commands_from_module('scrapy.commands', inproject)   File "c:\python27\lib\site-packages\scrapy\cmdline.py", line 29, in _get_comma nds_from_module     for cmd in _iter_command_classes(module):   File "c:\python27\lib\site-packages\scrapy\cmdline.py", line 20, in _iter_comm and_classes     for module in walk_modules(module_name):   File "c:\python27\lib\site-packages\scrapy\utils\misc.py", line 71, in walk_mo dules     submod = import_module(fullpath)   File "c:\python27\lib\importlib\__init__.py", line 37, in import_module     __import__(name)   File "c:\python27\lib\site-packages\scrapy\commands\version.py", line 6, in <m odule>     import OpenSSL   File "c:\python27\lib\site-packages\OpenSSL\__init__.py", line 8, in <module>     from OpenSSL import rand, crypto, SSL   File "c:\python27\lib\site-packages\OpenSSL\rand.py", line 11, in <module>     from OpenSSL._util import (   File "c:\python27\lib\site-packages\OpenSSL\_util.py", line 6, in <module>     from cryptography.hazmat.bindings.openssl.binding import Binding   File "c:\python27\lib\site-packages\cryptography\hazmat\bindings\openssl\bindi ng.py", line 14, in <module>     from cryptography.hazmat.bindings._openssl import ffi, lib ImportError: DLL load failed: %1 is not a valid Win32 application. 

回答1:

I, too, recently had this problem with OpenSSL on Windows, and in addition to the suggestion of installing pre-packaged library files from https://slproweb.com/products/Win32OpenSSL.html, I also needed to reinstall cryptography.

pip install -I cryptography

回答2:

I had the same problem. I download and install Win64OpenSSL_Light-1_0_2h and it worked.

文章来源: Python: Error when import OpenSSL