forked from Archives/langchain
38 lines
1.4 KiB
Markdown
38 lines
1.4 KiB
Markdown
# Setting up your environment
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Using LangChain will usually require integrations with one or more model providers, data stores, apis, etc.
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There are two components to setting this up, installing the correct python packages and setting the right environment variables.
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## Python packages
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The python package needed varies based on the integration. See the list of integrations for details.
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There should also be helpful error messages raised if you try to run an integration and are missing any required python packages.
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## Environment Variables
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The environment variable needed varies based on the integration. See the list of integrations for details.
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There should also be helpful error messages raised if you try to run an integration and are missing any required environment variables.
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You can set the environment variable in a few ways.
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If you are trying to set the environment variable `FOO` to value `bar`, here are the ways you could do so:
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- From the command line:
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```
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export FOO=bar
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```
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- From the python notebook/script:
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```python
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import os
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os.environ["FOO"] = "bar"
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```
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For the Getting Started example, we will be using OpenAI's APIs, so we will first need to install their SDK:
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```
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pip install openai
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```
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We will then need to set the environment variable. Let's do this from inside the Jupyter notebook (or Python script).
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```python
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import os
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os.environ["OPENAI_API_KEY"] = "..."
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```
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