install error, libwebkit2gtk dependency

[saga111a]

I try to install and have error.

user@user-user:~$ pip3 install --user  webview
Collecting webview
  Using cached https://files.pythonhosted.org/packages/0c/5f/6e84700b7825bcddb12cd3eead8ac787d9d624be9f2c01aa4fb9a88572a9/webview-0.1.5.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-ex70ux09/webview/setup.py", line 43, in <module>
        extra_cflags = pkgconfig("--cflags").split()
      File "/tmp/pip-build-ex70ux09/webview/setup.py", line 40, in pkgconfig
        stderr=subprocess.STDOUT).decode('utf-8')
      File "/usr/lib/python3.6/subprocess.py", line 336, in check_output
        **kwargs).stdout
      File "/usr/lib/python3.6/subprocess.py", line 418, in run
        output=stdout, stderr=stderr)
    subprocess.CalledProcessError: Command 'pkg-config --cflags gtk+-3.0 webkit2gtk-4.0' returned non-zero exit status 1.
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-ex70ux09/webview/

If I try to build result will be the same

user@user-user:~/Downloads/webview-python-master$ python setup.py install
Traceback (most recent call last):
  File "setup.py", line 26, in <module>
    extra_cflags = pkgconfig("--cflags").split()
  File "setup.py", line 23, in pkgconfig
    stderr=subprocess.STDOUT).decode('utf-8')
  File "/usr/lib/python2.7/subprocess.py", line 223, in check_output
    raise CalledProcessError(retcode, cmd, output=output)
subprocess.CalledProcessError: Command 'pkg-config --cflags gtk+-3.0 webkit2gtk-4.0' returned non-zero exit status 1

system info

user@user-user:~$  lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.1 LTS
Release:	18.04
Codename:	bionic

I tried to find webkit2* libs and libwebkit2gtk-4.0 was found as dependency.
May be it will be usefull to add dependences into description

[pythongiant]

thank you for this

[dmytrofrolov]

I have same problem described, using Ubuntu 16.04.6 LTS

To install dependencies:

sudo apt install libgtk-3-dev
sudo apt install libwebkit2gtk-4.0-dev

In case if pip fails with error:
webview/webview.c:1:20: fatal error: Python.h: No such file or directory
The python used in venv may be different from python in the system.
next might help, to install proper headers:
sudo apt install python3.6-dev

[makerio90]

libwebkit2gtk-4.0-dev has no installation candidate

[Gowrishankar-atmega-robotics]

try sudo apt-get update if any error when execute the 3rd command

1)sudo apt install libgtk-3-dev

2)sudo apt-get update

3)sudo apt install libwebkit2gtk-4.0-dev