Removed Google colab error warning.

noxfile.py

@@ -5,6 +5,7 @@
 
 
 # Options to modify nox behaviour
+nox.options.default_venv_backend = "virtualenv"
 nox.options.reuse_existing_virtualenvs = True
 if sys.platform != "win32":
     nox.options.sessions = ["pre-commit", "pybamm-requires", "unit"]
@@ -61,10 +62,6 @@ def run_coverage(session):
     """Run the coverage tests and generate an XML report."""
     set_environment_variables(PYBAMM_ENV, session=session)
     session.install("coverage", silent=False)
-    # Temporary fix for Python 3.12 CI. TODO: remove after
-    # https://bitbucket.org/pybtex-devs/pybtex/issues/169/replace-pkg_resources-with
-    # is fixed
-    session.install("setuptools", silent=False)
     if sys.platform != "win32":
         if sys.version_info > (3, 12):
             session.install("-e", ".[all,dev,jax]", silent=False)
@@ -93,10 +90,6 @@ def run_coverage(session):
 def run_integration(session):
     """Run the integration tests."""
     set_environment_variables(PYBAMM_ENV, session=session)
-    # Temporary fix for Python 3.12 CI. TODO: remove after
-    # https://bitbucket.org/pybtex-devs/pybtex/issues/169/replace-pkg_resources-with
-    # is fixed
-    session.install("setuptools", silent=False)
     if sys.platform != "win32":
         if sys.version_info > (3, 12):
             session.install("-e", ".[all,dev,jax]", silent=False)
@@ -122,10 +115,6 @@ def run_integration(session):
 @nox.session(name="doctests")
 def run_doctests(session):
     """Run the doctests and generate the output(s) in the docs/build/ directory."""
-    # Temporary fix for Python 3.12 CI. TODO: remove after
-    # https://bitbucket.org/pybtex-devs/pybtex/issues/169/replace-pkg_resources-with
-    # is fixed
-    session.install("setuptools", silent=False)
     session.install("-e", ".[all,docs]", silent=False)
     session.run("python", "run-tests.py", "--doctest")
 
@@ -134,10 +123,6 @@ def run_doctests(session):
 def run_unit(session):
     """Run the unit tests."""
     set_environment_variables(PYBAMM_ENV, session=session)
-    # Temporary fix for Python 3.12 CI. TODO: remove after
-    # https://bitbucket.org/pybtex-devs/pybtex/issues/169/replace-pkg_resources-with
-    # is fixed
-    session.install("setuptools", silent=False)
     if sys.platform != "win32":
         if sys.version_info > (3, 12):
             session.install("-e", ".[all,dev,jax]", silent=False)
@@ -164,10 +149,6 @@ def run_unit(session):
 def run_examples(session):
     """Run the examples tests for Jupyter notebooks."""
     set_environment_variables(PYBAMM_ENV, session=session)
-    # Temporary fix for Python 3.12 CI. TODO: remove after
-    # https://bitbucket.org/pybtex-devs/pybtex/issues/169/replace-pkg_resources-with
-    # is fixed
-    session.install("setuptools", silent=False)
     session.install("-e", ".[all,dev]", silent=False)
     notebooks_to_test = session.posargs if session.posargs else []
     session.run("pytest", "--nbmake", *notebooks_to_test, external=True)
@@ -177,10 +158,6 @@ def run_examples(session):
 def run_scripts(session):
     """Run the scripts tests for Python scripts."""
     set_environment_variables(PYBAMM_ENV, session=session)
-    # Temporary fix for Python 3.12 CI. TODO: remove after
-    # https://bitbucket.org/pybtex-devs/pybtex/issues/169/replace-pkg_resources-with
-    # is fixed
-    session.install("setuptools", silent=False)
     session.install("-e", ".[all]", silent=False)
     session.run("python", "run-tests.py", "--scripts")
 
@@ -253,10 +230,6 @@ def set_dev(session):
 def run_tests(session):
     """Run the unit tests and integration tests sequentially."""
     set_environment_variables(PYBAMM_ENV, session=session)
-    # Temporary fix for Python 3.12 CI. TODO: remove after
-    # https://bitbucket.org/pybtex-devs/pybtex/issues/169/replace-pkg_resources-with
-    # is fixed
-    session.install("setuptools", silent=False)
     if sys.platform != "win32":
         if sys.version_info > (3, 12):
             session.install("-e", ".[all,dev,jax]", silent=False)
@@ -284,10 +257,6 @@ def build_docs(session):
     """Build the documentation and load it in a browser tab, rebuilding on changes."""
     envbindir = session.bin
     session.install("-e", ".[all,docs]", silent=False)
-    # Temporary fix for Python 3.12 CI. TODO: remove after
-    # https://bitbucket.org/pybtex-devs/pybtex/issues/169/replace-pkg_resources-with
-    # is fixed
-    session.install("setuptools", silent=False)
     session.chdir("docs")
     # Local development
     if session.interactive:

pybamm/citations.py

@@ -256,9 +256,7 @@ def print_citations(filename=None, output_format="text", verbose=False):
     """See :meth:`Citations.print`"""
     if citations._citation_err_msg is not None:
         raise ImportError(
-            f"Citations could not be registered. If you are on Google Colab - "
-            "pybtex does not work with Google Colab due to a known bug - "
-            "https://bitbucket.org/pybtex-devs/pybtex/issues/148/. "
+            f"Citations could not be registered."
             "Please manually cite all the references."
             "\nError encountered -\n"
             f"{citations._citation_err_msg}"