[META] Fixed reading gempy version from gempy

Author: Leguark

setup.py

@@ -1,13 +1,9 @@
 # setup.py for gempy_viewer. Requierements are numpy and matplotlib
 
 from setuptools import setup, find_packages
+import gempy 
 
-
-with open("gempy_viewer/__init__.py", "r") as f:
-    for line in f:
-        if line.startswith("__version__"):
-            version = line.split("=")[1].strip().strip("'")
-            break
+version = gempy.__version__
 
 
 def read_requirements(file_name):