I have been happily using electrum in my linux mint OS for some time but it has failed to receive a payment and gets stuck on 'Synchronising'. I have tried to upgrade electrum to version 3.3.2, but I get the following error messages:

The directory '/home/my idrectory/.cache/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 '/home/my idrectory/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled.

    Error: Electrum requires Python version >= 3.6.1...
   
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-3246txsb/electrum/
You are using pip version 8.1.1, however version 18.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

I have tried the following:

- upgrading via pip install using 'pip install --upgrade pip' command.
- 'pip install --upgrade setuptools'
- 'pip install --upgrade setuptools --user python'

but I get the same error message.


I have tried:

sudo apt-get install python3.5-dev libmysqlclient-dev
sudo apt-get install python3-numpy

but get the same error message.

Would anyone have any ideas?

Thank you!

Cheers Jack.

Yes, I installed python 3 with:

$ sudo apt-get install python3-setuptools python3-pyqt5 python3-pip
[sudo] password for beans9:
Reading package lists... Done
Building dependency tree       
Reading state information... Done
python3-setuptools is already the newest version (20.7.0-1).
python3-pyqt5 is already the newest version (5.5.1+dfsg-3ubuntu4).
python3-pip is already the newest version (8.1.1-2ubuntu0.4).
0 to upgrade, 0 to newly install, 0 to remove and 5 not to upgrade.

When I check the version of python with:

python3.6 -V

It reports:

Python 3.6.7

But it fails when installing electrum itself, ie:

sudo python3 -m pip install https://download.electrum.org/3.3.2/Electrum-3.3.2.tar.gz#egg=electrum[fast]

produces:

The directory '/home/my idrectory/.cache/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 '/home/my idrectory/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled.

    Error: Electrum requires Python version >= 3.6.1...
   
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-3246txsb/electrum/
You are using pip version 8.1.1, however version 18.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

---

When I try to upgrade pip with

sudo pip install --upgrade pip

I get this:

/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/__init__.py:83: RequestsDependencyWarning: Old version of cryptography ([1, 2, 3]) may cause slowdown.
  warnings.warn(warning, RequestsDependencyWarning)

Requirement already up-to-date: pip in /usr/local/lib/python2.7/dist-packages (18.1)

Note the references to python 2.7.

I don't know how to get past this.

---

Looking for 'python' folders in /usr/local/lib I have 'python3.6', but no files in there, which seems odd.

what is the output of:


Also instead of installing via pip3 I suggest simply downloading the tarball, checking the gpg sig and then untarring it:


Then rename the new dir:


Change to it and run electrum


Create a link to run_electrum on your desktop for easy access.

Had exactly the same problem using Ubuntu 16.04. LTS Exact same error messages.

I tried to update python manually, tried to update pip, tried the 'sudo -H' ... nothing worked.

When I upgraded to Ubuntu 18.04. LTS the installation of Electrum 3.3.2 went smooth and without a problem. Probably it's the same problem in mint, the python version is outdated.

What mint version are you using?

Upgrade if possible.

Have you tried Abdussamad suggestion above? Instead of installing it, you can try to update phyton and then run Electrum directly after extracting it from the source code. Or are you trying to say that python couldn't be updated?


What have you done to fix it? If you don't share enough details it is difficult to help you.

I suggest you first upgrade your Python using a PPA:


And then try running the binary again.


sudo pip3  etc...

When you use pip, it is common in many Linux distros to have both the pip for python2 and the pip for python3. Depending on distro you might have separate binaries (ie. pip2 or pip3). With Ubuntu (also Mint) this appears to be /usr/bin/pip3

Regular pip refers to pip2, it may be that you don't have pip3 installed but you could always run python3 and type import pip to test this (although even the most basic Linux distros come with pip3).