Auto-convert numbers to strings when appending to a text dtype tensor (…

…#2782)

Auto-convert numbers to strings when appending to a text dtype tensor

deeplake/core/chunk/base_chunk.py

@@ -1,3 +1,4 @@
+import numbers
 from abc import abstractmethod
 import struct
 import numpy as np
@@ -605,6 +606,9 @@ def is_empty_tensor(self):
         )
 
     def _text_sample_to_byte_string(self, sample):
+        if isinstance(sample, numbers.Number):
+            sample = str(sample)
+
         try:
             return str(sample.numpy().reshape(())).encode("utf-8")
         except AttributeError:

deeplake/core/chunk/tests/test_base_chunk.py

@@ -0,0 +1,19 @@
+import pytest
+
+from deeplake.core.chunk.uncompressed_chunk import UncompressedChunk
+from deeplake.core.meta import TensorMeta
+
+
+def test_text_sample_to_byte_string():
+    chunk = UncompressedChunk(
+        min_chunk_size=10,
+        max_chunk_size=1000,
+        tiling_threshold=1000,
+        tensor_meta=TensorMeta(),
+    )
+
+    assert chunk._text_sample_to_byte_string("test") == b"test"
+    assert chunk._text_sample_to_byte_string(3) == b"3"
+    assert chunk._text_sample_to_byte_string(3.5) == b"3.5"
+    assert chunk._text_sample_to_byte_string(None) == b""
+    assert chunk._text_sample_to_byte_string([]) == b""