gh-134861: revert "Add CSV and BSV output formats to asyncio ps" (#138187)

This reverts commit ee72c95aa9 and 470cbe97a5

Lib/asyncio/__main__.py

@@ -1,6 +1,7 @@
 import argparse
 import ast
 import asyncio
+import asyncio.tools
 import concurrent.futures
 import contextvars
 import inspect
@@ -10,9 +11,6 @@
 import threading
 import types
 import warnings
-from asyncio.tools import (TaskTableOutputFormat,
-                           display_awaited_by_tasks_table,
-                           display_awaited_by_tasks_tree)
 
 from _colorize import get_theme
 from _pyrepl.console import InteractiveColoredConsole
@@ -155,11 +153,6 @@ def interrupt(self) -> None:
         "ps", help="Display a table of all pending tasks in a process"
     )
     ps.add_argument("pid", type=int, help="Process ID to inspect")
-    formats = [fmt.value for fmt in TaskTableOutputFormat]
-    formats_to_show = [fmt for fmt in formats
-                       if fmt != TaskTableOutputFormat.bsv.value]
-    ps.add_argument("--format", choices=formats, default="table",
-                    metavar=f"{{{','.join(formats_to_show)}}}")
     pstree = subparsers.add_parser(
         "pstree", help="Display a tree of all pending tasks in a process"
     )
@@ -167,10 +160,10 @@ def interrupt(self) -> None:
     args = parser.parse_args()
     match args.command:
         case "ps":
-            display_awaited_by_tasks_table(args.pid, format=args.format)
+            asyncio.tools.display_awaited_by_tasks_table(args.pid)
             sys.exit(0)
         case "pstree":
-            display_awaited_by_tasks_tree(args.pid)
+            asyncio.tools.display_awaited_by_tasks_tree(args.pid)
             sys.exit(0)
         case None:
             pass  # continue to the interactive shell

Lib/asyncio/tools.py

@@ -1,9 +1,8 @@
 """Tools to analyze tasks running in asyncio programs."""
 
-from collections import defaultdict
+from collections import defaultdict, namedtuple
-import csv
 from itertools import count
-from enum import Enum, StrEnum, auto
+from enum import Enum
 import sys
 from _remote_debugging import RemoteUnwinder, FrameInfo
 
@@ -233,56 +232,18 @@ def _get_awaited_by_tasks(pid: int) -> list:
         sys.exit(1)
 
 
-class TaskTableOutputFormat(StrEnum):
+def display_awaited_by_tasks_table(pid: int) -> None:
-    table = auto()
-    csv = auto()
-    bsv = auto()
-    # 🍌SV is not just a format. It's a lifestyle. A philosophy.
-    # https://www.youtube.com/watch?v=RrsVi1P6n0w
-
-
-def display_awaited_by_tasks_table(pid, *, format=TaskTableOutputFormat.table):
     """Build and print a table of all pending tasks under `pid`."""
 
     tasks = _get_awaited_by_tasks(pid)
     table = build_task_table(tasks)
-    format = TaskTableOutputFormat(format)
+    # Print the table in a simple tabular format
-    if format == TaskTableOutputFormat.table:
+    print(
-        _display_awaited_by_tasks_table(table)
+        f"{'tid':<10} {'task id':<20} {'task name':<20} {'coroutine stack':<50} {'awaiter chain':<50} {'awaiter name':<15} {'awaiter id':<15}"
-    else:
+    )
-        _display_awaited_by_tasks_csv(table, format=format)
+    print("-" * 180)
-
-
-_row_header = ('tid', 'task id', 'task name', 'coroutine stack',
-               'awaiter chain', 'awaiter name', 'awaiter id')
-
-
-def _display_awaited_by_tasks_table(table):
-    """Print the table in a simple tabular format."""
-    print(_fmt_table_row(*_row_header))
-    print('-' * 180)
     for row in table:
-        print(_fmt_table_row(*row))
+        print(f"{row[0]:<10} {row[1]:<20} {row[2]:<20} {row[3]:<50} {row[4]:<50} {row[5]:<15} {row[6]:<15}")
-
-
-def _fmt_table_row(tid, task_id, task_name, coro_stack,
-                   awaiter_chain, awaiter_name, awaiter_id):
-    # Format a single row for the table format
-    return (f'{tid:<10} {task_id:<20} {task_name:<20} {coro_stack:<50} '
-            f'{awaiter_chain:<50} {awaiter_name:<15} {awaiter_id:<15}')
-
-
-def _display_awaited_by_tasks_csv(table, *, format):
-    """Print the table in CSV format"""
-    if format == TaskTableOutputFormat.csv:
-        delimiter = ','
-    elif format == TaskTableOutputFormat.bsv:
-        delimiter = '\N{BANANA}'
-    else:
-        raise ValueError(f"Unknown output format: {format}")
-    csv_writer = csv.writer(sys.stdout, delimiter=delimiter)
-    csv_writer.writerow(_row_header)
-    csv_writer.writerows(table)
 
 
 def display_awaited_by_tasks_tree(pid: int) -> None:

Misc/NEWS.d/next/Library/2025-05-29-19-00-37.gh-issue-134861.y2-fu-.rst

@@ -1 +0,0 @@
-Add CSV as an output format for :program:`python -m asyncio ps`.