5762 pprint head and tail bundle script (#5969)

Signed-off-by: Wenqi Li <wenqil@nvidia.com>

Fixes #5762

### Description

limiting the number of printing lines

### Types of changes
<!--- Put an `x` in all the boxes that apply, and remove the not
applicable items -->
- [x] Non-breaking change (fix or new feature that would not break
existing functionality).
- [ ] Breaking change (fix or new feature that would cause existing
functionality to change).
- [x] New tests added to cover the changes.
- [ ] Integration tests passed locally by running `./runtests.sh -f -u
--net --coverage`.
- [x] Quick tests passed locally by running `./runtests.sh --quick
--unittests --disttests`.
- [ ] In-line docstrings updated.
- [ ] Documentation updated, tested `make html` command in the `docs/`
folder.

---------

Signed-off-by: Wenqi Li <wenqil@nvidia.com>

monai/bundle/scripts.py

@@ -14,7 +14,6 @@
 import ast
 import json
 import os
-import pprint
 import re
 import time
 import warnings
@@ -37,7 +36,7 @@
 from monai.data import load_net_with_metadata, save_net_with_metadata
 from monai.networks import convert_to_torchscript, copy_model_state, get_state_dict, save_state
 from monai.utils import check_parent_dir, get_equivalent_dtype, min_version, optional_import
-from monai.utils.misc import ensure_tuple
+from monai.utils.misc import ensure_tuple, pprint_edges
 
 validate, _ = optional_import("jsonschema", name="validate")
 ValidationError, _ = optional_import("jsonschema.exceptions", name="ValidationError")
@@ -48,6 +47,7 @@
 
 # set BUNDLE_DOWNLOAD_SRC="ngc" to use NGC source in default for bundle download
 download_source = os.environ.get("BUNDLE_DOWNLOAD_SRC", "github")
+PPRINT_CONFIG_N = 5
 
 
 def _update_args(args: str | dict | None = None, ignore_none: bool = True, **kwargs: Any) -> dict:
@@ -88,7 +88,7 @@ def _pop_args(src: dict, *args: Any, **kwargs: Any) -> tuple:
 def _log_input_summary(tag: str, args: dict) -> None:
     logger.info(f"--- input summary of monai.bundle.scripts.{tag} ---")
     for name, val in args.items():
-        logger.info(f"> {name}: {pprint.pformat(val)}")
+        logger.info(f"> {name}: {pprint_edges(val, PPRINT_CONFIG_N)}")
     logger.info("---\n\n")
 
 

monai/utils/__init__.py

@@ -77,6 +77,7 @@
     issequenceiterable,
     list_to_dict,
     path_to_uri,
+    pprint_edges,
     progress_bar,
     sample_slices,
     save_obj,

monai/utils/misc.py

@@ -14,6 +14,7 @@
 import inspect
 import itertools
 import os
+import pprint
 import random
 import shutil
 import tempfile
@@ -60,6 +61,7 @@
     "save_obj",
     "label_union",
     "path_to_uri",
+    "pprint_edges",
 ]
 
 _seed = None
@@ -626,3 +628,17 @@ def path_to_uri(path: PathLike) -> str:
 
     """
     return Path(path).absolute().as_uri()
+
+
+def pprint_edges(val: Any, n_lines: int = 20) -> str:
+    """
+    Pretty print the head and tail ``n_lines`` of ``val``, and omit the middle part if the part has more than 3 lines.
+
+    Returns: the formatted string.
+    """
+    val_str = pprint.pformat(val).splitlines(True)
+    n_lines = max(n_lines, 1)
+    if len(val_str) > n_lines * 2 + 3:
+        hidden_n = len(val_str) - n_lines * 2
+        val_str = val_str[:n_lines] + [f"\n ... omitted {hidden_n} line(s)\n\n"] + val_str[-n_lines:]
+    return "".join(val_str)

tests/test_bundle_utils.py

@@ -20,6 +20,7 @@
 
 from monai.bundle.utils import load_bundle_config
 from monai.networks.nets import UNet
+from monai.utils import pprint_edges
 from tests.utils import command_line_tests, skip_if_windows
 
 metadata = """
@@ -117,5 +118,16 @@ def test_load_config_ts(self):
         self.assertEqual(p["test_dict"]["b"], "c")
 
 
+class TestPPrintEdges(unittest.TestCase):
+    def test_str(self):
+        self.assertEqual(pprint_edges("", 0), "''")
+        self.assertEqual(pprint_edges({"a": 1, "b": 2}, 0), "{'a': 1, 'b': 2}")
+        self.assertEqual(
+            pprint_edges([{"a": 1, "b": 2}] * 20, 1),
+            "[{'a': 1, 'b': 2},\n\n ... omitted 18 line(s)\n\n {'a': 1, 'b': 2}]",
+        )
+        self.assertEqual(pprint_edges([{"a": 1, "b": 2}] * 8, 4), pprint_edges([{"a": 1, "b": 2}] * 8, 3))
+
+
 if __name__ == "__main__":
     unittest.main()