# \[Resolved\] Installing cert-verifier

**URL:** https://community.blockcerts.org/t/resolved-installing-cert-verifier/1489
**Category:** Technical
**Created:** [November 14, 2018, 2:09pm UTC](https://community.blockcerts.org/t/resolved-installing-cert-verifier/1489 "2018-11-14T14:09:03Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![luvimperfection](https://avatars.discourse-cdn.com/v4/letter/l/71e660/32.png) [@luvimperfection](https://community.blockcerts.org/u/luvimperfection)
#### Post date: [November 14, 2018, 2:09pm UTC](https://community.blockcerts.org/t/resolved-installing-cert-verifier/1489/1 "2018-11-14T14:09:03Z")

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Hi, everyone. I’m a newbie here.  
I was following this tutorial…

> **[GitHub - blockchain-certificates/cert-verifier: Python library for verifying...](https://github.com/blockchain-certificates/cert-verifier)**
>
> Python library for verifying Blockcerts. Contribute to blockchain-certificates/cert-verifier development by creating an account on GitHub.

and I’m stuck while running

> pip install .

I even did

> pip3 install .

but this was no use too…

 ![46](https://us1.discourse-cdn.com/flex016/uploads/blockcerts/original/1X/49fc3f5ff7e165bddd0ae500fa09c4d0797878c9.png)

I’m a newbie to blockchain… could someone please help me?  
(By the way, I have experience with python, java, and (very basic) linux but I have no experience with wallets.)

**oh, by the way… self introduction**  
I am an engineering student in South Korea,  
and I have faith in Blockchain that it could give transparency to many fields, especially education  
I want to make a blockcert certificate for my university’s internal usage, maybe starting from some small certificates for vacational programs and camps for highschoolers…  
BUT I’M STUCK 😢 please help me…

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### Author: ![lparker](https://avatars.discourse-cdn.com/v4/letter/l/3bc359/32.png) [@lparker](https://community.blockcerts.org/u/lparker)
#### Post date: [November 20, 2018, 3:23pm UTC](https://community.blockcerts.org/t/resolved-installing-cert-verifier/1489/2 "2018-11-20T15:23:34Z")

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I’m not a Mac user, so I’m afraid I can’t give you too much detailed technical assistance with anything specific to that environment, but I asked someone who is. It sounds like there are occasional issues with scrypt on Mac, which _may or may not_ help you out, but here’s the quick-and-dirty note on the subject: [https://github.com/blockchain-certificates/cert-issuer#mac-scrypt-problems](https://github.com/blockchain-certificates/cert-issuer#mac-scrypt-problems)

Note that this is for cert-issuer and not cert-verifier, but they are both Python apps with similar requirements. Might help!

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### Author: ![aronning](https://avatars.discourse-cdn.com/v4/letter/a/47e85d/32.png) [@aronning](https://community.blockcerts.org/u/aronning)
#### Post date: [November 21, 2018, 3:47am UTC](https://community.blockcerts.org/t/resolved-installing-cert-verifier/1489/3 "2018-11-21T03:47:09Z")

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I’m a mac user and have had problems before running some of the blockcerts python projects on my local machine. For me, the solution was to run them in a virtual environment.

> <https://github.com/blockchain-certificates/cert-issuer/blob/master/docs/virtualenv.md>

Try to give that a try, and run `pip install .` after doing the step: `source ./venv/bin/activate`

Just did it fresh on my machine and it worked, so it doesn’t appear that there’s any python dependency hell going on, which sometimes happens.

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### Author: ![luvimperfection](https://avatars.discourse-cdn.com/v4/letter/l/71e660/32.png) [@luvimperfection](https://community.blockcerts.org/u/luvimperfection)
#### Post date: [December 4, 2018, 3:31am UTC](https://community.blockcerts.org/t/resolved-installing-cert-verifier/1489/4 "2018-12-04T03:31:10Z")

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Hi aronning 😄  
Thank you for your help and sorry for late reply - I was busy doing some other stuff  
And yesterday, thanks to your help, I fixed the bug!  
I activated my virtualenv, used sudo pip, updated xcode command line tools, and these three led to success 😆
