Hotfix for tools and dependencies

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "langflow"
-version = "0.0.53"
+version = "0.0.54"
 description = "A Python package with a built-in web application"
 authors = ["Logspace <contact@logspace.ai>"]
 maintainers = [
@@ -34,14 +34,15 @@ openai = "^0.27.2"
 types-pyyaml = "^6.0.12.8"
 dill = "^0.3.6"
 pandas = "^1.5.3"
+huggingface-hub = "^0.13.3"
+rich = "^13.3.3"
 
 [tool.poetry.group.dev.dependencies]
 black = "^23.1.0"
 ipykernel = "^6.21.2"
 mypy = "^1.1.1"
 ruff = "^0.0.254"
 httpx = "^0.23.3"
-rich = "^13.3.3"
 pytest = "^7.2.2"
 types-requests = "^2.28.11"
 requests = "^2.28.0"

src/backend/langflow/api/base.py

@@ -28,10 +28,52 @@ class PromptValidationResponse(BaseModel):
     input_variables: list
 
 
+INVALID_CHARACTERS = {
+    " ",
+    ",",
+    ".",
+    ":",
+    ";",
+    "!",
+    "?",
+    "/",
+    "\\",
+    "(",
+    ")",
+    "[",
+    "]",
+    "{",
+    "}",
+}
+
+
 def validate_prompt(template: str):
     input_variables = extract_input_variables_from_prompt(template)
-    if invalid := [variable for variable in input_variables if " " in variable]:
+
+    # Check if there are invalid characters in the input_variables
+    input_variables = check_input_variables(input_variables)
+
+    return PromptValidationResponse(input_variables=input_variables)
+
+
+def check_input_variables(input_variables: list):
+    invalid_chars = []
+    fixed_variables = []
+    for variable in input_variables:
+        new_var = variable
+        for char in INVALID_CHARACTERS:
+            if char in variable:
+                invalid_chars.append(char)
+                new_var = new_var.replace(char, "")
+        fixed_variables.append(new_var)
+        if new_var != variable:
+            input_variables.remove(variable)
+            input_variables.append(new_var)
+    # If any of the input_variables is not in the fixed_variables, then it means that
+    # there are invalid characters in the input_variables
+    if any(var not in fixed_variables for var in input_variables):
         raise ValueError(
-            f"Invalid input variables: {invalid}. Please remove spaces from input variables"
+            f"Invalid input variables: {input_variables}. Please, use something like {fixed_variables} instead."
         )
-    return PromptValidationResponse(input_variables=input_variables)
+
+    return input_variables

src/backend/langflow/config.yaml

@@ -26,12 +26,13 @@ llms:
   - OpenAI
   - AzureOpenAI
   - ChatOpenAI
+  - HuggingFaceHub
 
 tools:
-  - Search
+  # - Search
   - PAL-MATH
   - Calculator
-  - Serper Search
+  # - Serper Search
   - Tool
   - PythonFunction
   - JsonSpec

src/backend/langflow/template/base.py

@@ -178,7 +178,8 @@ def format_field(field: TemplateField, name: Optional[str] = None) -> None:
         field.show = bool(
             (field.required and key not in ["input_variables"])
             or key in FORCE_SHOW_FIELDS
-            or "api_key" in key
+            or "api" in key
+            or "key" in key
         )
 
         # Add password field