pip3: command not found

Question

I want to install TensorFlow following these instructions: https://web.archive.org/web/20170627102751/https://www.tensorflow.org/versions/r0.12/get_started/os_setup#pip_installation

But when I try this code on terminal, it returns an error.

$ sudo pip3 install --upgrade $TF_BINARY_URL
sudo: pip3: command not found

So I installed Homebrew and tried to uninstall and reinstall python3-pip, but didn't work.

MakotonoMacBook-ea:~ makotomiyazaki$ brew uninstall python3-pip
Error: No such keg: /usr/local/Cellar/python3-pip

MakotonoMacBook-ea:~ makotomiyazaki$ brew install python3-pip
Error: No available formula with the name "python3-pip" 
==> Searching for a previously deleted formula...
Warning: homebrew/core is shallow clone. To get complete history run:
  git -C "$(brew --repo homebrew/core)" fetch --unshallow

What should I do for getting pip3? My OS is macOS High Sierra, and I have Python 3.6.2 already installed.

EDIT: I tried

python3 -m pip

and what's returned was this:

The directory '/Users/makotomiyazaki/Library/Caches/pip/http' or its 
parent directory is not owned by the current user and the cache has 
been disabled. Please check the permissions and owner of that 
directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/Users/makotomiyazaki/Library/Caches/pip' or its parent 
directory is not owned by the current user and caching wheels has been 
disabled. check the permissions and owner of that directory. If 
executing pip with sudo, you may want sudo's -H flag.
You must give at least one requirement to install (see "pip help 
install")

I also tried which pip3, but just I don't know if it worked...

MakotonoMacBook-ea:~ makotomiyazaki$ sudo which pip3 install --upgrade $TF_BINARY_URL
/usr/bin/install

Does `python3 -m pip` work? You should be installing packages into a venv anyway, though. — Ry-, Dec 28 '17 at 21:49
Possible duplicate of [bash: pip: command not found](https://stackoverflow.com/questions/9780717/bash-pip-command-not-found) — dstudeba, Dec 28 '17 at 21:52
Did you try `which pip3`? I have both python2 and python3 installed and since I am too lazy to set up aliases I will have to do the entire path. — dstudeba, Dec 28 '17 at 21:53
Thanks for your comments, I tried both but it doesn't seem to have worked... — Makoto Miyazaki, Dec 28 '17 at 22:12

score 156 · Accepted Answer · edited Sep 04 '22 at 12:40

156

You would need to install pip3.

On Linux, run first sudo apt update. Then the command would be: sudo apt install python3-pip

On Mac, using brew, first brew install python3
Then brew postinstall python3

Try calling pip3 -V to see if it worked.

edited Sep 04 '22 at 12:40

Community

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answered Jan 25 '18 at 18:59

Ali Nobari

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This gives me an error `error: could not create '/usr/local/lib/python3.6/site-packages/pip/_internal': Permission denied` I will keep on investigating – Amaury Liet Jun 01 '18 at 14:01
@AmauryLiet can you specify which command gave you that error? – Ali Nobari Jun 04 '18 at 21:07
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I ran `brew postinstall python3` I tried `brew uninstall python3` which wasn't enough, but this did the trick: `sudo rm -rf /usr/local/lib/python3.6` – Amaury Liet Jun 07 '18 at 14:35
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`brew postinstall python3` was what I needed – Doug Harris Dec 10 '18 at 19:44
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No package python3-pip available. – Roy Holzem Jul 10 '19 at 11:28
for me brew postinstall python3 says Warning: The post-install step did not complete successfully, You can try again using `brew postinstall python3` – Siddharth Choudhary Apr 05 '20 at 15:51
So when I updated brew upgrade python3 and then when ran `brew postinstall python3` worked for me – Siddharth Choudhary Apr 05 '20 at 15:56
i get command not found after installing an app with pip3 – chovy Nov 06 '20 at 13:46

Babatunde Mustapha · Answer 2 · 2021-08-20T19:04:05.110

24

I had this issue and I fixed it using the following steps You need to completely uninstall python3-pip using:

sudo apt-get --purge autoremove python3-pip

Then resintall the package with:

 sudo apt install python3-pip

To confirm that everything works, run:

 pip3 -V

After this you can now use pip3 to manage any python package of your interest. Eg

pip3 install NumPy

edited Aug 20 '21 at 19:04

answered Jun 10 '20 at 06:45

Babatunde Mustapha

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This issue appeared for me after reinstall mysql server. The above, solved it. – FlyingZebra1 Dec 24 '20 at 04:30
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Thanks, this answer really helped. I had same issue. – alok.m Apr 17 '21 at 22:35

score 2 · Answer 3 · answered Dec 28 '17 at 22:17

2

Writing the whole path/directory eg. (for windows) C:\Programs\Python\Python36-32\Scripts\pip3.exe install mypackage. This worked well for me when I had trouble with pip.

answered Dec 28 '17 at 22:17

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Thanks for your comments! But I'm not sure which directory I should write. I am relatively new to my Mac also... – Makoto Miyazaki Jan 08 '18 at 20:12

score 2 · Answer 4 · answered Jan 26 '19 at 01:39

2

its possible if you already have a python installed (pip) you could do a upgrade on mac by

brew upgrade python

answered Jan 26 '19 at 01:39

Pravin Bansal

4,315
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score 1 · Answer 5 · answered Jul 08 '19 at 03:38

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Try this if other methods do not work:

brew install python3
brew link --overwrite python
brew postinstall python3

answered Jul 08 '19 at 03:38

See

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score 1 · Answer 6 · answered Jan 07 '22 at 15:32

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In my case, although python3-pip was already installed, it didn't recognize pip3. After reinstalling with

sudo yum reinstall python3-pip

it worked fine and recognized pip3 commands.

answered Jan 07 '22 at 15:32

Filippo Loddo

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score 0 · Answer 7 · answered Sep 18 '20 at 04:19

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After yum install python3-pip, check the name of the installed binary. e.g.

ll /usr/bin/pip*

On my CentOS 7, it is named as pip-3 instead of pip3.

answered Sep 18 '20 at 04:19

bob jiang

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pip3: command not found

7 Answers7