pip error main(?)

I just upgrade my pip in raspdebian and I got this error when I run pip

Error message

Traceback (most recent call last):
  File "/usr/bin/pip3", line 9, in
    from pip import main
ImportError: cannot import name 'main'

I already tried to reinstall pip from apt but it didn't solve the problem

In the end, I found something

type in terminal

nano  /usr/bin/pip

that will open pip file like this

import sys
from pip import main
if __name__ == '__main__':
     sys.exit(main())

1. Change "from pip import main" to "from pip import __main__"
2. Change "sys.exit(main())" to "sys.exit(__main__._main())"

The result is like this

import sys
from pip import __main__
if __name__ == '__main__':
     sys.exit(__main__._main())

exit nano and save

and you can use your pip again

Change phpmyadmin's URL in ubuntu

A few years ago I put some note for windows here

and now I will make one for ubuntu

So for example, I want to change my phpmyadmin link

default: 127.0.0.1/phpmyadmin and I want to change it to 127.0.0.1/myownlink

we need to change 1 setting in apache2

sudo nano /etc/apache2/conf-enabled/phpmyadmin.conf

change the alias

Alias /phpmyadmin /usr/share/phpmyadmin

to

 Alias /myownlink /usr/share/phpmyadmin

then we need to activate and restart apache2 (maybe only restart apache2 will do it)

 sudo a2enconf phpmyadmin.conf

 sudo systemctl reload apache2.service

done yey \o/ 

MySQL in ubuntu 18.04 (update)

It was a long time ago, I make a post (or my personal note) about how to install MySQL in ubuntu
and it seems now, the version and how to install is already changed so I make this post.

previous post here

Step:
0. apt get update (start with this)

sudo apt-get update

1. Installing MySQL

sudo apt-get install mysql-server

1.1. mysql secure installation (optional but recommended)

sudo mysql_secure_installation

2. Installing apache2

sudo apt-get install apache2

3. Installing phpmyadmin

sudo apt-get install phpmyadmin

4. connect apache2 and phpmyadmin

sudo ln -s /etc/phpmyadmin/apache.conf /etc/apache2/conf-available/phpmyadmin.conf

5. activate it

sudo a2enconf phpmyadmin.conf

6. restart apache

sudo systemctl reload apache2.service

ok done

Arduino nano suddenly get error: avrdude: stk500_getsync() (Solved)

I am still new in arduino things
I use the arduino IDE from windows store with auto update on.

So basically what happen is like this:
My PC using Arduino IDE v1.8.5 because I never close that window so it never update.
And then when I try to upload a program from my laptop which is use Arduino IDE v1.8.7, I got these error

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x53
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x65
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x74
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x75
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x70
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x50
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x44
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x0d
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x0a
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x72
An error occurred while uploading the sketch

After doing some googling (thanks Mr. google), I found out that this error means that you computer has connection problem with your arduino, meanwhile I didn't do anything since the last time.

The same error happened after I update my IDE in my PC from v1.8.5 to v1.8.7

Finally, I found out that I used the wrong processor
So basically there are update in bootloader of nano and I need to use the ATmega328(Old Bootloader) instead of ATmega328

And that fix all my connection problem
I hope this can help, for someone who still use the old nano bootloader

Install Jupyter in windows 10

As my previous diary is about jupyter here

so now I will make a note how to install jupyter in windows 10 (my current OS)
I assume you already have anaconda installed

To install jupyter we need to do this step

python  -m pip install jupyter

I think it will be the same in linux, but I haven't try it yet

pip install jupyter

And done


Then after that you can run it by type

jupyter notebook

on you command prompt

It will open http://localhost:8888/ in your browser