From 8d79fee3b454f0638ad266898244f34bc8a54f80 Mon Sep 17 00:00:00 2001
From: Tulga-Erdene Sodjargal <128572046+tulga-rdn@users.noreply.github.com>
Date: Fri, 20 Dec 2024 23:30:13 +0100
Subject: [PATCH 1/2] add tidynamics to requirements.txt

---
 package/requirements.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package/requirements.txt b/package/requirements.txt
index accac1b49fd..341c720ee38 100644
--- a/package/requirements.txt
+++ b/package/requirements.txt
@@ -22,3 +22,4 @@ mdanalysis_sphinx_theme >=1.0.1
 sphinx_sitemap
 threadpoolctl
 tqdm
+tidynamics

From 51d83ed699e5da7578623e3ccd9fd25c9cde8f80 Mon Sep 17 00:00:00 2001
From: Tulga-Erdene Sodjargal <128572046+tulga-rdn@users.noreply.github.com>
Date: Fri, 20 Dec 2024 23:32:33 +0100
Subject: [PATCH 2/2] remove tidynamics not detected error

---
 package/MDAnalysis/analysis/msd.py | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/package/MDAnalysis/analysis/msd.py b/package/MDAnalysis/analysis/msd.py
index 4515ed40983..75c7832c168 100644
--- a/package/MDAnalysis/analysis/msd.py
+++ b/package/MDAnalysis/analysis/msd.py
@@ -392,19 +392,7 @@ def _conclude_fft(self):  # with FFT, np.float64 bit prescision required.
         r""" Calculates the MSD via the FCA fast correlation algorithm.
 
         """
-        try:
-            import tidynamics
-        except ImportError:
-            raise ImportError("""ERROR --- tidynamics was not found!
-
-                tidynamics is required to compute an FFT based MSD (default)
-
-                try installing it using pip eg:
-
-                    pip install tidynamics
-
-                or set fft=False""")
-
+        import tidynamics
         positions = self._position_array.astype(np.float64)
         for n in tqdm(range(self.n_particles)):
             self.results.msds_by_particle[:, n] = tidynamics.msd(