Datasets:

pyofpython
/

debugtraj-50k

Error code:   DatasetGenerationCastError
Exception:    DatasetGenerationCastError
Message:      An error occurred while generating the dataset

All the data files must have the same columns, but at some point there are 37 new columns ({'num_file_navigations', 'hour_of_day', 'primary_file_extension', 'lines_changed', 'fix_quality', 'external_resources_used', 'day_of_week', 'compile_attempts', 'files_modified', 'num_web_searches', 'error_type', 'regression_introduced', 'fix_strategy', 'experience_level', 'programming_language', 'operating_system', 'codebase_size_loc', 'timestamp_end', 'error_message_length', 'timestamp_start', 'test_added', 'keystrokes_per_minute', 'resolution_time_minutes', 'editor_used', 'company_size', 'team_context', 'took_break', 'years_experience', 'project_type', 'asked_colleague', 'similar_bug_before', 'stack_trace_depth', 'outcome', 'error_severity', 'ai_assistant_used', 'resolution_time_seconds', 'is_weekend'}) and 8 missing columns ({'event_duration_seconds', 'is_final_event', 'event_type', 'event_timestamp', 'event_detail', 'event_sequence', 'session_stage', 'elapsed_seconds'}).

This happened while the csv dataset builder was generating data using

hf://datasets/pyofpython/debugtraj-50k/code_debugging_sessions_fixed.csv (at revision 1d6920f1bd6119a2ddd65d94318d6eea45e5fc25), ['hf://datasets/pyofpython/debugtraj-50k@1d6920f1bd6119a2ddd65d94318d6eea45e5fc25/code_debugging_events_fixed.csv', 'hf://datasets/pyofpython/debugtraj-50k@1d6920f1bd6119a2ddd65d94318d6eea45e5fc25/code_debugging_sessions_fixed.csv']

Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1837, in _prepare_split_single
                  writer.write_table(table)
                  ~~~~~~~~~~~~~~~~~~^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/arrow_writer.py", line 765, in write_table
                  self._write_table(pa_table, writer_batch_size=writer_batch_size)
                  ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/arrow_writer.py", line 773, in _write_table
                  pa_table = table_cast(pa_table, self._schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2369, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2297, in cast_table_to_schema
                  raise CastError(
                  ...<3 lines>...
                  )
              datasets.table.CastError: Couldn't cast
              session_id: string
              timestamp_start: string
              timestamp_end: string
              day_of_week: string
              hour_of_day: int64
              is_weekend: bool
              years_experience: double
              experience_level: string
              editor_used: string
              operating_system: string
              company_size: string
              team_context: string
              programming_language: string
              project_type: string
              codebase_size_loc: int64
              files_modified: int64
              primary_file_extension: string
              error_type: string
              error_severity: int64
              error_message_length: int64
              stack_trace_depth: int64
              similar_bug_before: bool
              resolution_time_seconds: int64
              resolution_time_minutes: double
              compile_attempts: int64
              num_web_searches: int64
              external_resources_used: string
              ai_assistant_used: bool
              asked_colleague: bool
              num_file_navigations: int64
              lines_changed: int64
              keystrokes_per_minute: int64
              took_break: bool
              fix_strategy: string
              outcome: string
              fix_quality: string
              regression_introduced: bool
              test_added: bool
              -- schema metadata --
              pandas: '{"index_columns": [{"kind": "range", "name": null, "start": 0, "' + 5162
              to
              {'session_id': Value('string'), 'event_sequence': Value('int64'), 'event_type': Value('string'), 'event_detail': Value('string'), 'event_timestamp': Value('string'), 'event_duration_seconds': Value('int64'), 'elapsed_seconds': Value('int64'), 'session_stage': Value('string'), 'is_final_event': Value('bool')}
              because column names don't match
              
              During handling of the above exception, another exception occurred:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1369, in compute_config_parquet_and_info_response
                  parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
                                                                        ~~~~~~~~~~~~~~~~~~~~~~~~~^
                      builder, max_dataset_size_bytes=max_dataset_size_bytes
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  )
                  ^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 948, in stream_convert_to_parquet
                  builder._prepare_split(split_generator=splits_generators[split], file_format="parquet")
                  ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1683, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                                               ~~~~~~~~~~~~~~~~~~~~~~~~~~^
                      gen_kwargs=gen_kwargs, job_id=job_id, **_prepare_split_args
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  ):
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1839, in _prepare_split_single
                  raise DatasetGenerationCastError.from_cast_error(
                  ...<4 lines>...
                  )
              datasets.exceptions.DatasetGenerationCastError: An error occurred while generating the dataset
              
              All the data files must have the same columns, but at some point there are 37 new columns ({'num_file_navigations', 'hour_of_day', 'primary_file_extension', 'lines_changed', 'fix_quality', 'external_resources_used', 'day_of_week', 'compile_attempts', 'files_modified', 'num_web_searches', 'error_type', 'regression_introduced', 'fix_strategy', 'experience_level', 'programming_language', 'operating_system', 'codebase_size_loc', 'timestamp_end', 'error_message_length', 'timestamp_start', 'test_added', 'keystrokes_per_minute', 'resolution_time_minutes', 'editor_used', 'company_size', 'team_context', 'took_break', 'years_experience', 'project_type', 'asked_colleague', 'similar_bug_before', 'stack_trace_depth', 'outcome', 'error_severity', 'ai_assistant_used', 'resolution_time_seconds', 'is_weekend'}) and 8 missing columns ({'event_duration_seconds', 'is_final_event', 'event_type', 'event_timestamp', 'event_detail', 'event_sequence', 'session_stage', 'elapsed_seconds'}).
              
              This happened while the csv dataset builder was generating data using
              
              hf://datasets/pyofpython/debugtraj-50k/code_debugging_sessions_fixed.csv (at revision 1d6920f1bd6119a2ddd65d94318d6eea45e5fc25), ['hf://datasets/pyofpython/debugtraj-50k@1d6920f1bd6119a2ddd65d94318d6eea45e5fc25/code_debugging_events_fixed.csv', 'hf://datasets/pyofpython/debugtraj-50k@1d6920f1bd6119a2ddd65d94318d6eea45e5fc25/code_debugging_sessions_fixed.csv']
              
              Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)

Need help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.

session_id string	event_sequence int64	event_type string	event_detail string	event_timestamp string	event_duration_seconds int64	elapsed_seconds int64	session_stage string	is_final_event bool
DBG_0000000	0	test_run	partial	2025-07-11 17:37:01	14	0	early	false
DBG_0000000	1	web_search	language docs	2025-07-11 17:37:15	84	14	early	false
DBG_0000000	2	web_search	language docs	2025-07-11 17:38:39	158	98	early	false
DBG_0000000	3	web_search	framework docs	2025-07-11 17:41:17	26	256	early	false
DBG_0000000	4	edit_code	applied suggestion	2025-07-11 17:41:43	20	282	middle	false
DBG_0000000	5	pause_think	general	2025-07-11 17:42:03	9	302	middle	true
DBG_0000001	0	edit_code	renamed variable	2025-08-01 08:56:39	16	0	early	false
DBG_0000001	1	web_search	language docs	2025-08-01 08:56:55	122	16	early	false
DBG_0000001	2	ai_chat_query	asked for explanation/fix suggestion	2025-08-01 08:58:57	47	138	early	false
DBG_0000001	3	cursor_move	jumped to line 324	2025-08-01 08:59:44	2	185	middle	false
DBG_0000001	4	pause_think	general	2025-08-01 08:59:46	5	187	middle	false
DBG_0000001	5	ai_chat_query	asked for explanation/fix suggestion	2025-08-01 08:59:51	2	192	middle	true
DBG_0000002	0	console_log_added	logged variable: p_debug	2025-08-19 12:29:36	10	0	early	false
DBG_0000002	1	compile_error	TS2349: line 362	2025-08-19 12:29:46	3	10	early	false
DBG_0000002	2	pause_think	general	2025-08-19 12:29:49	13	13	early	false
DBG_0000002	3	stackoverflow_visit	general	2025-08-19 12:30:02	138	26	middle	true
DBG_0000003	0	breakpoint_hit	general	2025-04-23 09:01:02	4	0	early	false
DBG_0000003	1	web_search	stackoverflow	2025-04-23 09:01:06	75	4	early	false
DBG_0000003	2	compile_error	SyntaxError: line 180	2025-04-23 09:02:21	2	79	early	false
DBG_0000003	3	edit_code	extracted method	2025-04-23 09:02:23	17	81	middle	false
DBG_0000003	4	edit_code	added comment	2025-04-23 09:02:40	79	98	middle	true
DBG_0000004	0	cursor_move	jumped to line 466	2025-10-31 12:48:01	1	0	early	false
DBG_0000004	1	edit_code	refactored loop	2025-10-31 12:48:02	53	1	early	false
DBG_0000004	2	compile_error	Lifetime_Error: line 371	2025-10-31 12:48:55	6	54	early	false
DBG_0000004	3	compile_error	Lifetime_Error: line 461	2025-10-31 12:49:01	8	60	early	false
DBG_0000004	4	compile_error	Lifetime_Error: line 255	2025-10-31 12:49:09	8	68	early	false
DBG_0000004	5	stackoverflow_visit	general	2025-10-31 12:49:17	73	76	early	false
DBG_0000004	6	edit_code	applied suggestion	2025-10-31 12:50:30	12	149	early	false
DBG_0000004	7	compile_success	general	2025-10-31 12:50:42	4	161	early	false
DBG_0000004	8	edit_code	removed dead code	2025-10-31 12:50:46	52	165	early	false
DBG_0000004	9	compile_error	Lifetime_Error: line 31	2025-10-31 12:51:38	1	217	early	false
DBG_0000004	10	breakpoint_set	breakpoint at line 202	2025-10-31 12:51:39	1	218	early	false
DBG_0000004	11	compile_error	Lifetime_Error: line 454	2025-10-31 12:51:40	11	219	early	false
DBG_0000004	12	web_search	github issues	2025-10-31 12:51:51	14	230	early	false
DBG_0000004	13	file_open	opened rs file #2	2025-10-31 12:52:05	2	244	early	false
DBG_0000004	14	web_search	framework docs	2025-10-31 12:52:07	46	246	early	false
DBG_0000004	15	web_search	google	2025-10-31 12:52:53	84	292	early	false
DBG_0000004	16	compile_error	Lifetime_Error: line 306	2025-10-31 12:54:17	5	376	early	false
DBG_0000004	17	compile_error	Lifetime_Error: line 307	2025-10-31 12:54:22	2	381	early	false
DBG_0000004	18	test_run	passed	2025-10-31 12:54:24	7	383	early	false
DBG_0000004	19	compile_success	general	2025-10-31 12:54:31	1	390	early	false
DBG_0000004	20	compile_error	Lifetime_Error: line 25	2025-10-31 12:54:32	1	391	early	false
DBG_0000004	21	compile_success	general	2025-10-31 12:54:33	3	392	middle	false
DBG_0000004	22	edit_code	removed dead code	2025-10-31 12:54:36	31	395	middle	false
DBG_0000004	23	edit_code	added validation	2025-10-31 12:55:07	71	426	middle	false
DBG_0000004	24	edit_code	updated import	2025-10-31 12:56:18	18	497	middle	false
DBG_0000004	25	breakpoint_set	breakpoint at line 118	2025-10-31 12:56:36	2	515	middle	false
DBG_0000004	26	console_log_added	logged variable: p_debug	2025-10-31 12:56:38	4	517	middle	false
DBG_0000004	27	web_search	stackoverflow	2025-10-31 12:56:42	62	521	middle	false
DBG_0000004	28	compile_error	Lifetime_Error: line 269	2025-10-31 12:57:44	6	583	middle	false
DBG_0000004	29	edit_code	reverted change	2025-10-31 12:57:50	30	589	middle	false
DBG_0000004	30	edit_code	removed dead code	2025-10-31 12:58:20	12	619	middle	false
DBG_0000004	31	test_run	crashed	2025-10-31 12:58:32	23	631	middle	false
DBG_0000004	32	compile_error	Lifetime_Error: line 376	2025-10-31 12:58:55	12	654	middle	false
DBG_0000004	33	pause_think	general	2025-10-31 12:59:07	7	666	middle	false
DBG_0000004	34	file_open	opened rs file #5	2025-10-31 12:59:14	2	673	middle	false
DBG_0000004	35	pause_think	general	2025-10-31 12:59:16	23	675	middle	false
DBG_0000004	36	breakpoint_set	breakpoint at line 290	2025-10-31 12:59:39	2	698	middle	false
DBG_0000004	37	compile_error	Lifetime_Error: line 351	2025-10-31 12:59:41	4	700	middle	false
DBG_0000004	38	compile_error	Lifetime_Error: line 240	2025-10-31 12:59:45	2	704	middle	false
DBG_0000004	39	compile_error	Lifetime_Error: line 461	2025-10-31 12:59:47	5	706	middle	false
DBG_0000004	40	variable_inspect	general	2025-10-31 12:59:52	7	711	middle	false
DBG_0000004	41	breakpoint_set	breakpoint at line 12	2025-10-31 12:59:59	3	718	middle	false
DBG_0000004	42	variable_inspect	general	2025-10-31 13:00:02	5	721	middle	false
DBG_0000004	43	test_run	crashed	2025-10-31 13:00:07	7	726	middle	false
DBG_0000004	44	stackoverflow_visit	general	2025-10-31 13:00:14	145	733	middle	false
DBG_0000004	45	console_log_added	logged variable: q_debug	2025-10-31 13:02:39	17	878	middle	false
DBG_0000004	46	cursor_move	jumped to line 409	2025-10-31 13:02:56	5	895	middle	false
DBG_0000004	47	stackoverflow_visit	general	2025-10-31 13:03:01	224	900	middle	false
DBG_0000004	48	stackoverflow_visit	general	2025-10-31 13:06:45	107	1,124	late	false
DBG_0000004	49	edit_code	applied suggestion	2025-10-31 13:08:32	20	1,231	late	false
DBG_0000004	50	compile_error	Lifetime_Error: line 76	2025-10-31 13:08:52	3	1,251	late	false
DBG_0000004	51	cursor_move	jumped to line 441	2025-10-31 13:08:55	2	1,254	late	false
DBG_0000004	52	web_search	github issues	2025-10-31 13:08:57	59	1,256	late	false
DBG_0000004	53	edit_code	refactored loop	2025-10-31 13:09:56	10	1,315	late	false
DBG_0000004	54	cursor_move	jumped to line 435	2025-10-31 13:10:06	1	1,325	late	false
DBG_0000004	55	edit_code	renamed variable	2025-10-31 13:10:07	39	1,326	late	false
DBG_0000004	56	breakpoint_hit	general	2025-10-31 13:10:46	3	1,365	late	false
DBG_0000004	57	console_log_added	logged variable: s_debug	2025-10-31 13:10:49	13	1,368	late	false
DBG_0000004	58	compile_error	Lifetime_Error: line 150	2025-10-31 13:11:02	3	1,381	late	false
DBG_0000004	59	test_run	partial	2025-10-31 13:11:05	12	1,384	late	false
DBG_0000004	60	file_open	opened rs file #1	2025-10-31 13:11:17	4	1,396	late	false
DBG_0000004	61	console_log_added	logged variable: c_debug	2025-10-31 13:11:21	2	1,400	late	false
DBG_0000004	62	compile_success	general	2025-10-31 13:11:23	4	1,402	late	false
DBG_0000004	63	pause_think	general	2025-10-31 13:11:27	74	1,406	late	false
DBG_0000004	64	git_commit	commit: Type cast / conversion applied	2025-10-31 13:12:41	16	1,480	late	false
DBG_0000004	65	git_commit	commit: Type cast / conversion applied	2025-10-31 13:12:57	12	1,496	late	false
DBG_0000004	66	edit_code	applied suggestion	2025-10-31 13:13:09	27	1,508	late	false
DBG_0000004	67	edit_code	added validation	2025-10-31 13:13:36	55	1,535	late	true
DBG_0000005	0	edit_code	removed dead code	2025-01-06 21:28:45	40	0	early	false
DBG_0000005	1	variable_inspect	general	2025-01-06 21:29:25	2	40	early	false
DBG_0000005	2	edit_code	added validation	2025-01-06 21:29:27	28	42	early	false
DBG_0000005	3	pause_think	general	2025-01-06 21:29:55	21	70	early	false
DBG_0000005	4	cursor_move	jumped to line 403	2025-01-06 21:30:16	1	91	early	false
DBG_0000005	5	compile_success	general	2025-01-06 21:30:17	2	92	middle	false
DBG_0000005	6	cursor_move	jumped to line 297	2025-01-06 21:30:19	4	94	middle	false
DBG_0000005	7	compile_error	Channel_Close: line 485	2025-01-06 21:30:23	2	98	middle	false
DBG_0000005	8	variable_inspect	general	2025-01-06 21:30:25	2	100	middle	false
DBG_0000005	9	compile_error	Channel_Close: line 132	2025-01-06 21:30:27	5	102	middle	false
DBG_0000005	10	web_search	framework docs	2025-01-06 21:30:32	15	107	late	false

End of preview.

DebugTraj-50K: Developer Debugging Trajectory Dataset

50,000 debugging sessions with 665,364 step-by-step behavioral events across 8 programming languages and 71 error types.

Load in one line

import pandas as pd
sessions = pd.read_csv("hf://datasets/pyofpython/debugtraj-50k/code_debugging_sessions_fixed.csv")
events   = pd.read_csv("hf://datasets/pyofpython/debugtraj-50k/code_debugging_events_fixed.csv")

What makes this unique

Most bug datasets only say "bug was fixed in 23 minutes." This dataset records every step taken during those 23 minutes — every compile, edit, search, test, and commit.

Files

File	Rows	Description
code_debugging_sessions_fixed.csv	50,000	Session features (38 columns)
code_debugging_events_fixed.csv	665,364	Event trajectories (9 columns)
DATA_DICTIONARY_updated.md	—	Full column documentation

Use cases

Predict debugging time from early session features
Classify whether a session will succeed or be abandoned
Next-action prediction for AI coding assistants
Study junior vs senior developer behavior patterns

Citation

@dataset{singh2026debugtraj,
  author    = {Abhishek Singh},
  title     = {DebugTraj-50K: Developer Debugging Trajectory Dataset},
  year      = {2026},
  publisher = {HuggingFace},
  url       = {https://huggingface.co/datasets/pyofpython/debugtraj-50k}
}

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