From a6b30cd9879fcf6fe508e81ceb5f0c9c134e5350 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Sun, 22 Mar 2026 23:37:28 +0000
Subject: [PATCH 1/3] Fix epochtable() tuple unpacking in timeseries probe
 classes

epochtable() returns (list, hash) but getchanneldevinfo() and
_readtimeseries_via_syncgraph() assigned the tuple directly to et,
causing et[epoch-1] to return the list instead of a dict entry,
leading to AttributeError: 'list' object has no attribute 'get'.

https://claude.ai/code/session_017Sfgtomgo9AEEGfKP57eJZ
---
 src/ndi/probe/timeseries.py       | 2 +-
 src/ndi/probe/timeseries_mfdaq.py | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ndi/probe/timeseries.py b/src/ndi/probe/timeseries.py
index 50f8522..2987b38 100644
--- a/src/ndi/probe/timeseries.py
+++ b/src/ndi/probe/timeseries.py
@@ -95,7 +95,7 @@ def _readtimeseries_via_syncgraph(
             return None, None, None
 
         # Get epoch table
-        et = self.epochtable()
+        et, _ = self.epochtable()
         if not et:
             return None, None, None
 
diff --git a/src/ndi/probe/timeseries_mfdaq.py b/src/ndi/probe/timeseries_mfdaq.py
index 2d5a1b9..5fd8949 100644
--- a/src/ndi/probe/timeseries_mfdaq.py
+++ b/src/ndi/probe/timeseries_mfdaq.py
@@ -168,7 +168,7 @@ def getchanneldevinfo(
             return None
 
         # Get epoch probe map
-        et = self.epochtable()
+        et, _ = self.epochtable()
         if not et:
             return None
 

From c216f6e7d80755e81fe5c237dc53eff4ba2b9dd3 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Sun, 22 Mar 2026 23:39:17 +0000
Subject: [PATCH 2/3] Fix epochtable() tuple unpacking in 3 more locations

- epoch/functions.py:epochrange() - was not unpacking tuple
- element/functions.py:_get_epoch_table() - could return tuple to
  callers expecting a list; now handles both return types
- fun/probe/export_binary.py - replace ad-hoc isinstance check with
  proper tuple unpacking

https://claude.ai/code/session_017Sfgtomgo9AEEGfKP57eJZ
---
 src/ndi/element/functions.py       | 5 ++++-
 src/ndi/epoch/functions.py         | 2 +-
 src/ndi/fun/probe/export_binary.py | 4 +---
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/ndi/element/functions.py b/src/ndi/element/functions.py
index 3a74bb0..e7f1d97 100644
--- a/src/ndi/element/functions.py
+++ b/src/ndi/element/functions.py
@@ -296,7 +296,10 @@ def _get_epoch_table(obj: Any) -> list[dict]:
     Handles ndi_element, ndi_probe, and dict-like objects.
     """
     if hasattr(obj, "epochtable"):
-        return obj.epochtable()
+        result = obj.epochtable()
+        if isinstance(result, tuple):
+            return result[0]
+        return result
     if isinstance(obj, dict):
         return obj.get("epochtable", [])
     if isinstance(obj, list):
diff --git a/src/ndi/epoch/functions.py b/src/ndi/epoch/functions.py
index c612360..fb6dd3a 100644
--- a/src/ndi/epoch/functions.py
+++ b/src/ndi/epoch/functions.py
@@ -41,7 +41,7 @@ def epochrange(
     Raises:
         ValueError: If epochs are not found or range is invalid
     """
-    et = epochset_obj.epochtable()
+    et, _ = epochset_obj.epochtable()
 
     if not et:
         return [], [], []
diff --git a/src/ndi/fun/probe/export_binary.py b/src/ndi/fun/probe/export_binary.py
index 62a4927..e7e54bd 100644
--- a/src/ndi/fun/probe/export_binary.py
+++ b/src/ndi/fun/probe/export_binary.py
@@ -45,9 +45,7 @@ def export_binary(
     outputfile = Path(outputfile)
     metafile = outputfile.with_suffix(outputfile.suffix + ".metadata")
 
-    et = probe.epochtable()
-    if isinstance(et, tuple):
-        et = et[0]
+    et, _ = probe.epochtable()
 
     dtype = np.dtype(precision)
     chunk_duration = 100  # seconds

From 937bab170ef996af91de5ba7ce36e24a4cce22c7 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Sun, 22 Mar 2026 23:43:15 +0000
Subject: [PATCH 3/3] Fix epochrange() to handle both tuple and list
 epochtable() returns

epochrange() accepts any object with an epochtable() method, which may
return either a tuple (epochset subclasses) or a plain list (daq/navigator).
Use isinstance check to handle both cases.

https://claude.ai/code/session_017Sfgtomgo9AEEGfKP57eJZ
---
 src/ndi/epoch/functions.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/ndi/epoch/functions.py b/src/ndi/epoch/functions.py
index fb6dd3a..ce02393 100644
--- a/src/ndi/epoch/functions.py
+++ b/src/ndi/epoch/functions.py
@@ -41,7 +41,8 @@ def epochrange(
     Raises:
         ValueError: If epochs are not found or range is invalid
     """
-    et, _ = epochset_obj.epochtable()
+    result = epochset_obj.epochtable()
+    et = result[0] if isinstance(result, tuple) else result
 
     if not et:
         return [], [], []