correction setup to read the requirements file

Author: Forbu

setup.py

@@ -4,8 +4,14 @@
 def read(fname):
     return open(os.path.join(os.path.dirname(__file__), fname)).read()
 
-with open('requirements.txt') as f:
-    required = f.read().splitlines()
+here = os.path.abspath(os.path.dirname(__file__))
+
+# What packages are required for this module to be executed?
+try:
+    with open(os.path.join(here, 'requirements.txt'), encoding='utf-8') as f:
+        required = f.read().split('\n')
+except:
+    required = []
 
 setup(
     name = "fourier_neural_operator",
@@ -18,4 +24,4 @@ def read(fname):
     install_requires=required,
     long_description_content_type='text/markdown',
     download_url = "https://github.com/Forbu/fourier_neural_operator/archive/refs/tags/first.tar.gz",
-)
+)