Fix tests

Author: stefanradev93

.github/workflows/tests.yml

@@ -21,7 +21,6 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r requirements.txt
         pip install tox tox-gh-actions
     - name: Test with tox
       run: tox

bayesflow/__init__.py

@@ -19,10 +19,13 @@
 # SOFTWARE.
 
 # Add easy access imports
-from bayesflow import default_settings
-from bayesflow import amortizers
-from bayesflow import networks
-from bayesflow import diagnostics
-from bayesflow import trainers
-from bayesflow import losses
-from bayesflow import mcmc
+try:
+    from bayesflow import default_settings
+    from bayesflow import amortizers
+    from bayesflow import networks
+    from bayesflow import diagnostics
+    from bayesflow import trainers
+    from bayesflow import losses
+    from bayesflow import mcmc
+except ImportError:
+    pass