Bold Crumbs

langchain/callbacks/tracers/stdout.py

@@ -3,7 +3,7 @@ from typing import Any, List
 
 from langchain.callbacks.tracers.base import BaseTracer
 from langchain.callbacks.tracers.schemas import Run
-from langchain.input import get_colored_text
+from langchain.input import get_bolded_text, get_colored_text
 
 
 def try_json_stringify(obj: Any, fallback: str) -> str:
@@ -54,7 +54,7 @@ class ConsoleCallbackHandler(BaseTracer):
         crumbs = self.get_breadcrumbs(run)
         print(
             f"{get_colored_text('[chain/start]', color='green')} "
-            f"[{crumbs}] Entering Chain run with input:\n"
+            + get_bolded_text(f"[{crumbs}] Entering Chain run with input:\n") +
             f"{try_json_stringify(run.inputs, '[inputs]')}"
         )
 
@@ -62,7 +62,7 @@ class ConsoleCallbackHandler(BaseTracer):
         crumbs = self.get_breadcrumbs(run)
         print(
             f"{get_colored_text('[chain/end]', color='blue')} "
-            f"[{crumbs}] [{elapsed(run)}] Exiting Chain run with output:\n"
+            + get_bolded_text(f"[{crumbs}] [{elapsed(run)}] Exiting Chain run with output:\n") +
             f"{try_json_stringify(run.outputs, '[outputs]')}"
         )
 
@@ -70,7 +70,7 @@ class ConsoleCallbackHandler(BaseTracer):
         crumbs = self.get_breadcrumbs(run)
         print(
             f"{get_colored_text('[chain/error]', color='red')} "
-            f"[{crumbs}] [{elapsed(run)}] Chain run errored with error:\n"
+            + get_bolded_text(f"[{crumbs}] [{elapsed(run)}] Chain run errored with error:\n") +
             f"{try_json_stringify(run.error, '[error]')}"
         )
 
@@ -83,7 +83,7 @@ class ConsoleCallbackHandler(BaseTracer):
         )
         print(
             f"{get_colored_text('[llm/start]', color='green')} "
-            f"[{crumbs}] Entering LLM run with input:\n"
+            + get_bolded_text(f"[{crumbs}] Entering LLM run with input:\n") +
             f"{try_json_stringify(inputs, '[inputs]')}"
         )
 
@@ -91,7 +91,7 @@ class ConsoleCallbackHandler(BaseTracer):
         crumbs = self.get_breadcrumbs(run)
         print(
             f"{get_colored_text('[llm/end]', color='blue')} "
-            f"[{crumbs}] [{elapsed(run)}] Exiting LLM run with output:\n"
+            + get_bolded_text(f"[{crumbs}] [{elapsed(run)}] Exiting LLM run with output:\n") +
             f"{try_json_stringify(run.outputs, '[response]')}"
         )
 
@@ -99,7 +99,7 @@ class ConsoleCallbackHandler(BaseTracer):
         crumbs = self.get_breadcrumbs(run)
         print(
             f"{get_colored_text('[llm/error]', color='red')} "
-            f"[{crumbs}] [{elapsed(run)}] LLM run errored with error:\n"
+            + get_bolded_text(f"[{crumbs}] [{elapsed(run)}] LLM run errored with error:\n") +
             f"{try_json_stringify(run.error, '[error]')}"
         )
 
@@ -107,7 +107,7 @@ class ConsoleCallbackHandler(BaseTracer):
         crumbs = self.get_breadcrumbs(run)
         print(
             f'{get_colored_text("[tool/start]", color="green")} '
-            f"[{crumbs}] Entering Tool run with input:\n"
+            + get_bolded_text(f"[{crumbs}] Entering Tool run with input:\n") +
             f'"{run.inputs["input"].strip()}"'
         )
 
@@ -116,7 +116,7 @@ class ConsoleCallbackHandler(BaseTracer):
         if run.outputs:
             print(
                 f'{get_colored_text("[tool/end]", color="blue")} '
-                f"[{crumbs}] [{elapsed(run)}] Exiting Tool run with output:\n"
+                + get_bolded_text(f"[{crumbs}] [{elapsed(run)}] Exiting Tool run with output:\n") +
                 f'"{run.outputs["output"].strip()}"'
             )
 
@@ -124,7 +124,7 @@ class ConsoleCallbackHandler(BaseTracer):
         crumbs = self.get_breadcrumbs(run)
         print(
             f"{get_colored_text('[tool/error]', color='red')} "
-            f"[{crumbs}] [{elapsed(run)}] "
+            + get_bolded_text(f"[{crumbs}] [{elapsed(run)}] ") +
             f"Tool run errored with error:\n"
             f"{run.error}"
         )

langchain/input.py

@@ -27,6 +27,11 @@ def get_colored_text(text: str, color: str) -> str:
     return f"\u001b[{color_str}m\033[1;3m{text}\u001b[0m"
 
 
+def get_bolded_text(text: str) -> str:
+    """Get bolded text."""
+    return f"\033[1m{text}\033[0m"
+
+
 def print_text(text: str, color: Optional[str] = None, end: str = "") -> None:
     """Print text with highlighting and no end characters."""
     if color is None: