'Agent stopped due to max iterations.'

[rajtilakjee]

I am running the following in a Jupyter Notebook:

from langchain.agents.agent_toolkits import create_python_agent
from langchain.tools.python.tool import PythonREPLTool
from langchain.python import PythonREPL
from langchain.llms.openai import OpenAI
import os

os.environ["OPENAI_API_KEY"]="sk-xxxxxxxx"

agent_executor = create_python_agent(
    llm=OpenAI(temperature=0, max_tokens=2048),
    tool=PythonREPLTool(),
    verbose=True,
)

agent_executor.run("""Understand, write a single neuron neural network in TensorFlow.
Take synthetic data for y=2x. Train for 1000 epochs and print every 100 epochs.
Return prediction for x = 5.""")

I got the following error:

> Entering new AgentExecutor chain...
 I need to install TensorFlow and create a single neuron neural network.
Action: Python REPL
Action Input: 
import tensorflow as tf

# Create the model
model = tf.keras.Sequential([tf.keras.layers.Dense(units=1, input_shape=[1])])

# Compile the model
model.compile(optimizer='sgd', loss='mean_squared_error')

# Create synthetic data
xs = np.array([-1.0, 0.0, 1.0, 2.0, 3.0, 4.0], dtype=float)
ys = np.array([-2.0, 0.0, 2.0, 4.0, 6.0, 8.0], dtype=float)

# Train the model
model.fit(xs, ys, epochs=1000, verbose=100)

Observation: No module named 'tensorflow'
Thought: I need to install TensorFlow
Action: Command Line
Action Input: pip install tensorflow
Observation: Command Line is not a valid tool, try another one.
Thought: I need to install TensorFlow
Action: Python REPL
Action Input: import tensorflow as tf
Observation: No module named 'tensorflow'
Thought: I need to install TensorFlow
Action: Command Line
Action Input: pip install tensorflow
Observation: Command Line is not a valid tool, try another one.
Thought: I need to install TensorFlow
Action: Python REPL
Action Input: !pip install tensorflow
Observation: invalid syntax (<string>, line 1)
Thought: I need to install TensorFlow
Action: Command Line
Action Input: pip install tensorflow
Observation: Command Line is not a valid tool, try another one.
Thought: I need to install TensorFlow
Action: Python REPL
Action Input: !pip install tensorflow
Observation: invalid syntax (<string>, line 1)
Thought: I need to install TensorFlow
Action: Command Line
Action Input: pip install tensorflow
Observation: Command Line is not a valid tool, try another one.
Thought: I need to install TensorFlow
Action: Python REPL
Action Input: !pip install tensorflow
Observation: invalid syntax (<string>, line 1)
Thought: I need to install TensorFlow
Action: Command Line
Action Input: pip install tensorflow
Observation: Command Line is not a valid tool, try another one.
Thought: I need to install TensorFlow
Action: Python REPL
Action Input: !pip install tensorflow
Observation: invalid syntax (<string>, line 1)
Thought: I need to install TensorFlow
Action: Command Line
Action Input: pip install tensorflow
Observation: Command Line is not a valid tool, try another one.
Thought: I need to install TensorFlow
Action: Python REPL
Action Input: !pip install tensorflow
Observation: invalid syntax (<string>, line 1)
Thought: I need to install TensorFlow
Action: Command Line
Action Input: pip install tensorflow
Observation: Command Line is not a valid tool, try another one.
Thought: I need to install TensorFlow
Action: Python REPL
Action Input: !pip install tensorflow
Observation: invalid syntax (<string>, line 1)
Thought:

> Finished chain.
'Agent stopped due to max iterations.'

Not sure where am I going wrong.

[rajtilakjee]

Update: This is working perfectly in Colab. Although, I had to reduce the number of epochs, but it still got the final result correct.

[rajtilakjee]

Update: Installed TensorFlow and tried again. Worked fine when reduced numver of epochs. Same issue occured when retried with PyTorch.

[anandvarrier]

Hi, Firstly, Thank you for raising the issue. I am working on an Amazon Dataset. The dataset contains around 1103170 rows × 10 columns.

I asked the following question: agent.run("Which is the most expensive item?")

I got the following error:

Entering new AgentExecutor chain... Thought: I need to find the item with the highest actual_price Action: python_repl_ast Action Input: df['actual_price'].max() Observation: '>=' not supported between instances of 'str' and 'float' Thought: I need to convert the actual_price column to a float Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace('₹', '').astype(float) Observation: could not convert string to float: '58,990' Thought: I need to remove the comma from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace(',', '').astype(float) Observation: could not convert string to float: '₹58990' Thought: I need to remove the '₹' from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace('₹', '').astype(float) Observation: could not convert string to float: '58,990' Thought: I need to remove the comma from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace(',', '').astype(float) Observation: could not convert string to float: '₹58990' Thought: I need to remove the '₹' from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace('₹', '').astype(float) Observation: could not convert string to float: '58,990' Thought: I need to remove the comma from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace(',', '').astype(float) Observation: could not convert string to float: '₹58990' Thought: I need to remove the '₹' from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace('₹', '').astype(float) Observation: could not convert string to float: '58,990' Thought: I need to remove the comma from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace(',', '').astype(float) Observation: could not convert string to float: '₹58990' Thought: I need to remove the '₹' from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace('₹', '').astype(float) Observation: could not convert string to float: '58,990' Thought: I need to remove the comma from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace(',', '').astype(float) Observation: could not convert string to float: '₹58990' Thought: I need to remove the '₹' from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace('₹', '').astype(float) Observation: could not convert string to float: '58,990' Thought: I need to remove the comma from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace(',', '').astype(float) Observation: could not convert string to float: '₹58990' Thought: I need to remove the '₹' from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace('₹', '').astype(float) Observation: could not convert string to float: '58,990' Thought: I need to remove the comma from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace(',', '').astype(float) Observation: could not convert string to float: '₹58990' Thought:

Finished chain. 'Agent stopped due to max iterations.'

Could anyone help?

[lifan0127]

This is an interesting pattern. The agent was able to identify two different data quality issues (comma and dollar sign) and propose the correct conversation in each case. However, it wasn't able to combine the two solutions and instead just toggled between them until the max iterations were reached.

Hi, Firstly, Thank you for raising the issue. I am working on an Amazon Dataset. The dataset contains around 1103170 rows × 10 columns.

I asked the following question: agent.run("Which is the most expensive item?")

I got the following error:

Entering new AgentExecutor chain... Thought: I need to find the item with the highest actual_price Action: python_repl_ast Action Input: df['actual_price'].max() Observation: '>=' not supported between instances of 'str' and 'float' Thought: I need to convert the actual_price column to a float Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace('₹', '').astype(float) Observation: could not convert string to float: '58,990' Thought: I need to remove the comma from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace(',', '').astype(float) Observation: could not convert string to float: '₹58990' Thought: I need to remove the '₹' from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace('₹', '').astype(float) Observation: could not convert string to float: '58,990' Thought: I need to remove the comma from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace(',', '').astype(float) Observation: could not convert string to float: '₹58990' Thought: I need to remove the '₹' from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace('₹', '').astype(float) Observation: could not convert string to float: '58,990' Thought: I need to remove the comma from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace(',', '').astype(float) Observation: could not convert string to float: '₹58990' Thought: I need to remove the '₹' from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace('₹', '').astype(float) Observation: could not convert string to float: '58,990' Thought: I need to remove the comma from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace(',', '').astype(float) Observation: could not convert string to float: '₹58990' Thought: I need to remove the '₹' from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace('₹', '').astype(float) Observation: could not convert string to float: '58,990' Thought: I need to remove the comma from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace(',', '').astype(float) Observation: could not convert string to float: '₹58990' Thought: I need to remove the '₹' from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace('₹', '').astype(float) Observation: could not convert string to float: '58,990' Thought: I need to remove the comma from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace(',', '').astype(float) Observation: could not convert string to float: '₹58990' Thought: I need to remove the '₹' from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace('₹', '').astype(float) Observation: could not convert string to float: '58,990' Thought: I need to remove the comma from the actual_price column Action: python_repl_ast Action Input: df['actual_price'] = df['actual_price'].str.replace(',', '').astype(float) Observation: could not convert string to float: '₹58990' Thought:

Finished chain. 'Agent stopped due to max iterations.'

Could anyone help?

[dosubot[bot]]

Hi, @rajtilakjee! I'm Dosu, and I'm here to help the LangChain team manage their backlog. I wanted to let you know that we are marking this issue as stale.

From what I understand, the issue is that the agent is unable to install TensorFlow using the command line tool, which causes it to reach the maximum number of iterations and stop. You mentioned that you tried reducing the number of epochs and installing TensorFlow separately, which seemed to work fine. Another user also encountered a similar issue with a dataset and provided a detailed explanation of the error they received. However, no solution or further comments have been provided yet.

Before we close this issue, we wanted to check with you if it is still relevant to the latest version of the LangChain repository. If it is, please let us know by commenting on the issue. Otherwise, feel free to close the issue yourself, or it will be automatically closed in 7 days.

Thank you for your understanding and cooperation!