Templates: Add clarity statements

Lets the user know if a file not found (OSError) occurs and prints
the applied template on model load.

Also fix some remaining references to fastchat.

Signed-off-by: kingbri <bdashore3@proton.me>

model.py

@@ -120,11 +120,14 @@ class ModelContainer:
                         self.prompt_template = get_template_from_file(template_name)
                         break
         except OSError:
-            # Silently set the prompt template to none on a file lookup error
+            # The template couldn't be found in the user's filesystem
+            print(f"Could not find template file with name {prompt_template_name}.jinja")
             self.prompt_template = None
 
         # Catch all for template lookup errors
-        if self.prompt_template is None:
+        if self.prompt_template:
+            print(f"Using template {self.prompt_template.name} for chat completions.")
+        else:
             print("Chat completions are disabled because a prompt template wasn't provided or auto-detected.")
 
         # Set num of experts per token if provided

templating.py

@@ -14,10 +14,10 @@ class PromptTemplate(BaseModel):
 def get_prompt_from_template(messages, prompt_template: PromptTemplate, add_generation_prompt: bool):
     if version.parse(package_version("jinja2")) < version.parse("3.0.0"):
         raise ImportError(
-            "Parsing these chat completion messages requires fastchat 0.2.23 or greater. "
+            "Parsing these chat completion messages requires jinja2 3.0.0 or greater. "
             f"Current version: {version('jinja2')}\n"
-            "Please upgrade fastchat by running the following command: "
-            "pip install -U fschat[model_worker]"
+            "Please upgrade jinja by running the following command: "
+            "pip install --upgrade jinja2"
         )
 
     compiled_template = _compile_template(prompt_template.template)