Add jupyter utils (Finra upstream) (#1135)

* Add jupyter utils

* mb to gb

* Message for non-linux

lib/sycamore/sycamore/utils/jupyter.py

@@ -0,0 +1,66 @@
+from typing import Optional
+
+
+def slow_pprint(
+    v: object, max_bytes: Optional[int] = None, width: int = 120, chunk_size: int = 1000, delay: float = 0.25
+) -> None:
+    """
+    Prints large outputs slowly to prevent Jupyter from dropping output.
+
+    Args:
+        v: Value to be pretty-printed.
+        max_bytes: Maximum number of bytes to display, None for no limit.
+        width: Width for pretty formatting.
+        chunk_size: Number of characters to print at a time.
+        delay: Time (in seconds) to wait between chunks.
+    """
+    from devtools import PrettyFormat
+    import time
+
+    s = PrettyFormat(width=width)(v)
+    if max_bytes is not None:
+        s = s[:max_bytes]
+
+    for i in range(0, len(s), chunk_size):
+        print(s[i : i + chunk_size], end="", flush=True)
+        time.sleep(delay)
+    if not s.endswith("\n"):
+        print("", flush=True)
+
+
+def bound_memory(gb: int = 4) -> None:
+    """
+    Limits the process's memory usage.
+
+    Args:
+        gb: Memory limit in gigabytes.
+    """
+    import resource
+    import platform
+
+    if platform.system() != "Linux":
+        print("WARNING: Memory limiting only works on Linux.")
+
+    limit_bytes: int = gb * 1024 * 1024 * 1024
+    resource.setrlimit(resource.RLIMIT_DATA, (limit_bytes, resource.RLIM_INFINITY))
+
+
+def reimport(module_name: str) -> None:
+    """
+    Dynamically reloads a module.
+
+    Args:
+        module_name: Name of the module as a string.
+    """
+    import importlib
+
+    try:
+        module = importlib.import_module(module_name)
+        importlib.reload(module)
+        print(f"Warning: You cneed to re-execute any statements like: `from {module_name} import ...`")
+
+    except ModuleNotFoundError:
+        print(f"Error: Module '{module_name}' not found.")
+
+    except Exception as e:
+        print(f"Error reloading module '{module_name}': {e}")