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I have conda xml2 installed.

However, when I execute pip install uspto-opendata-python, I get the following message

could not find function xmlCheckVersion in library libxml2. is libxml2 installed?

I noticed a similar question here - Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed? - but the suggestions listed there are not resolving my issue.

how to resolve this issue? That's the error message i'm getting:

C:\Users\njind\AppData\Local\Temp\xmlXPathInitwd5ud9xh.c(1): fatal error C1083: Cannot open include file: 'libxml/xpath.h': No such file or directory

error: command 'C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.32.31326\bin\HostX86\x64\cl.exe' failed with exit code 2

Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed?

enter image description here

James Z
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PhD Student
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  • Error message picture is unreadable. Please [edit] your question and include it as text, formatted like code with the `{ }` button. – BoarGules Jun 08 '22 at 18:14
  • Thank you, BoarGules. I have added the error message in text format within {} but I am not sure if it coming like a code. – PhD Student Jun 08 '22 at 18:19

1 Answers1

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I encountered the same error. You must download the file from Archived: Unofficial Windows Binaries for Python Extension Packages, then install it like this on Windows:

pip install C:\Users\USER\Downloads\lxml-4.9.0-cp311-cp311-win_amd64.whl

AlexK
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Roben
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