Simple Directory Reader¶
The SimpleDirectoryReader is the most commonly used data connector that just works.
Simply pass in a input directory or a list of files.
It will select the best file reader based on the file extensions.
Get Started¶
If you're opening this Notebook on colab, you will probably need to install LlamaIndex 🦙.
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!pip install llama-index
!pip install llama-index
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fastapi>=0.95.2->chromadb<0.5.0,>=0.4.22->llama-index-vector-stores-chroma<0.2.0,>=0.1.1->llama-index-cli<0.2.0,>=0.1.2->llama-index) (0.36.3) Requirement already satisfied: filelock in /Users/sourabhdesai/Library/Caches/pypoetry/virtualenvs/llama-index-cXQhuK8v-py3.11/lib/python3.11/site-packages (from huggingface_hub<1.0,>=0.16.4->tokenizers<0.16.0,>=0.15.1->llama-index-vector-stores-chroma<0.2.0,>=0.1.1->llama-index-cli<0.2.0,>=0.1.2->llama-index) (3.13.1) Requirement already satisfied: google-auth>=1.0.1 in /Users/sourabhdesai/Library/Caches/pypoetry/virtualenvs/llama-index-cXQhuK8v-py3.11/lib/python3.11/site-packages (from kubernetes>=28.1.0->chromadb<0.5.0,>=0.4.22->llama-index-vector-stores-chroma<0.2.0,>=0.1.1->llama-index-cli<0.2.0,>=0.1.2->llama-index) (2.28.0) Requirement already satisfied: websocket-client!=0.40.0,!=0.41.*,!=0.42.*,>=0.32.0 in /Users/sourabhdesai/Library/Caches/pypoetry/virtualenvs/llama-index-cXQhuK8v-py3.11/lib/python3.11/site-packages (from 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opentelemetry-instrumentation-asgi==0.43b0->opentelemetry-instrumentation-fastapi>=0.41b0->chromadb<0.5.0,>=0.4.22->llama-index-vector-stores-chroma<0.2.0,>=0.1.1->llama-index-cli<0.2.0,>=0.1.2->llama-index) (3.7.2) Requirement already satisfied: monotonic>=1.5 in /Users/sourabhdesai/Library/Caches/pypoetry/virtualenvs/llama-index-cXQhuK8v-py3.11/lib/python3.11/site-packages (from posthog>=2.4.0->chromadb<0.5.0,>=0.4.22->llama-index-vector-stores-chroma<0.2.0,>=0.1.1->llama-index-cli<0.2.0,>=0.1.2->llama-index) (1.6) Requirement already satisfied: httptools>=0.5.0 in /Users/sourabhdesai/Library/Caches/pypoetry/virtualenvs/llama-index-cXQhuK8v-py3.11/lib/python3.11/site-packages (from uvicorn[standard]>=0.18.3->chromadb<0.5.0,>=0.4.22->llama-index-vector-stores-chroma<0.2.0,>=0.1.1->llama-index-cli<0.2.0,>=0.1.2->llama-index) (0.6.1) Requirement already satisfied: python-dotenv>=0.13 in 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/Users/sourabhdesai/Library/Caches/pypoetry/virtualenvs/llama-index-cXQhuK8v-py3.11/lib/python3.11/site-packages (from uvicorn[standard]>=0.18.3->chromadb<0.5.0,>=0.4.22->llama-index-vector-stores-chroma<0.2.0,>=0.1.1->llama-index-cli<0.2.0,>=0.1.2->llama-index) (12.0) Requirement already satisfied: humanfriendly>=9.1 in /Users/sourabhdesai/Library/Caches/pypoetry/virtualenvs/llama-index-cXQhuK8v-py3.11/lib/python3.11/site-packages (from coloredlogs->onnxruntime<2.0.0,>=1.17.0->llama-index-vector-stores-chroma<0.2.0,>=0.1.1->llama-index-cli<0.2.0,>=0.1.2->llama-index) (10.0) Requirement already satisfied: mpmath>=0.19 in /Users/sourabhdesai/Library/Caches/pypoetry/virtualenvs/llama-index-cXQhuK8v-py3.11/lib/python3.11/site-packages (from sympy->onnxruntime<2.0.0,>=1.17.0->llama-index-vector-stores-chroma<0.2.0,>=0.1.1->llama-index-cli<0.2.0,>=0.1.2->llama-index) (1.3.0) Requirement already satisfied: cachetools<6.0,>=2.0.0 in 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Download Data
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!mkdir -p 'data/paul_graham/'
!wget 'https://raw.githubusercontent.com/run-llama/llama_index/main/docs/docs/examples/data/paul_graham/paul_graham_essay.txt' -O 'data/paul_graham/paul_graham_essay1.txt'
!wget 'https://raw.githubusercontent.com/run-llama/llama_index/main/docs/docs/examples/data/paul_graham/paul_graham_essay.txt' -O 'data/paul_graham/paul_graham_essay2.txt'
!wget 'https://raw.githubusercontent.com/run-llama/llama_index/main/docs/docs/examples/data/paul_graham/paul_graham_essay.txt' -O 'data/paul_graham/paul_graham_essay3.txt'
!mkdir -p 'data/paul_graham/'
!wget 'https://raw.githubusercontent.com/run-llama/llama_index/main/docs/docs/examples/data/paul_graham/paul_graham_essay.txt' -O 'data/paul_graham/paul_graham_essay1.txt'
!wget 'https://raw.githubusercontent.com/run-llama/llama_index/main/docs/docs/examples/data/paul_graham/paul_graham_essay.txt' -O 'data/paul_graham/paul_graham_essay2.txt'
!wget 'https://raw.githubusercontent.com/run-llama/llama_index/main/docs/docs/examples/data/paul_graham/paul_graham_essay.txt' -O 'data/paul_graham/paul_graham_essay3.txt'
--2024-03-21 16:03:25-- https://raw.githubusercontent.com/run-llama/llama_index/main/docs/docs/examples/data/paul_graham/paul_graham_essay.txt Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 2606:50c0:8003::154, 2606:50c0:8000::154, 2606:50c0:8001::154, ... Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|2606:50c0:8003::154|:443... connected. HTTP request sent, awaiting response... 404 Not Found 2024-03-21 16:03:25 ERROR 404: Not Found. --2024-03-21 16:03:25-- https://raw.githubusercontent.com/run-llama/llama_index/main/docs/docs/examples/data/paul_graham/paul_graham_essay.txt Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 2606:50c0:8003::154, 2606:50c0:8000::154, 2606:50c0:8001::154, ... Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|2606:50c0:8003::154|:443... connected. HTTP request sent, awaiting response... 404 Not Found 2024-03-21 16:03:25 ERROR 404: Not Found. --2024-03-21 16:03:25-- https://raw.githubusercontent.com/run-llama/llama_index/main/docs/docs/examples/data/paul_graham/paul_graham_essay.txt Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 2606:50c0:8003::154, 2606:50c0:8000::154, 2606:50c0:8001::154, ... Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|2606:50c0:8003::154|:443... connected. HTTP request sent, awaiting response... 404 Not Found 2024-03-21 16:03:25 ERROR 404: Not Found.
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from llama_index.core import SimpleDirectoryReader
from llama_index.core import SimpleDirectoryReader
Load specific files
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reader = SimpleDirectoryReader(
input_files=["./data/paul_graham/paul_graham_essay1.txt"]
)
reader = SimpleDirectoryReader(
input_files=["./data/paul_graham/paul_graham_essay1.txt"]
)
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docs = reader.load_data()
print(f"Loaded {len(docs)} docs")
docs = reader.load_data()
print(f"Loaded {len(docs)} docs")
Loaded 1 docs
Load all (top-level) files from directory
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reader = SimpleDirectoryReader(input_dir="./data/paul_graham/")
reader = SimpleDirectoryReader(input_dir="./data/paul_graham/")
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docs = reader.load_data()
print(f"Loaded {len(docs)} docs")
docs = reader.load_data()
print(f"Loaded {len(docs)} docs")
Loaded 3 docs
Load all (recursive) files from directory
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!mkdir -p 'data/paul_graham/nested'
!echo "This is a nested file" > 'data/paul_graham/nested/nested_file.md'
!mkdir -p 'data/paul_graham/nested'
!echo "This is a nested file" > 'data/paul_graham/nested/nested_file.md'
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# only load markdown files
required_exts = [".md"]
reader = SimpleDirectoryReader(
input_dir="./data",
required_exts=required_exts,
recursive=True,
)
# only load markdown files
required_exts = [".md"]
reader = SimpleDirectoryReader(
input_dir="./data",
required_exts=required_exts,
recursive=True,
)
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docs = reader.load_data()
print(f"Loaded {len(docs)} docs")
docs = reader.load_data()
print(f"Loaded {len(docs)} docs")
Loaded 1 docs
Create an iterator to load files and process them as they load
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reader = SimpleDirectoryReader(
input_dir="./data",
recursive=True,
)
all_docs = []
for docs in reader.iter_data():
for doc in docs:
# do something with the doc
doc.text = doc.text.upper()
all_docs.append(doc)
print(len(all_docs))
reader = SimpleDirectoryReader(
input_dir="./data",
recursive=True,
)
all_docs = []
for docs in reader.iter_data():
for doc in docs:
# do something with the doc
doc.text = doc.text.upper()
all_docs.append(doc)
print(len(all_docs))
4
Async execution is available through aload_data
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import nest_asyncio
nest_asyncio.apply()
reader = SimpleDirectoryReader(
input_dir="./data",
recursive=True,
)
all_docs = await reader.aload_data()
print(len(all_docs))
import nest_asyncio
nest_asyncio.apply()
reader = SimpleDirectoryReader(
input_dir="./data",
recursive=True,
)
all_docs = await reader.aload_data()
print(len(all_docs))
4
Full Configuration¶
This is the full list of arguments that can be passed to the SimpleDirectoryReader:
class SimpleDirectoryReader(BaseReader):
"""Simple directory reader.
Load files from file directory.
Automatically select the best file reader given file extensions.
Args:
input_dir (str): Path to the directory.
input_files (List): List of file paths to read
(Optional; overrides input_dir, exclude)
exclude (List): glob of python file paths to exclude (Optional)
exclude_hidden (bool): Whether to exclude hidden files (dotfiles).
encoding (str): Encoding of the files.
Default is utf-8.
errors (str): how encoding and decoding errors are to be handled,
see https://docs.python.org/3/library/functions.html#open
recursive (bool): Whether to recursively search in subdirectories.
False by default.
filename_as_id (bool): Whether to use the filename as the document id.
False by default.
required_exts (Optional[List[str]]): List of required extensions.
Default is None.
file_extractor (Optional[Dict[str, BaseReader]]): A mapping of file
extension to a BaseReader class that specifies how to convert that file
to text. If not specified, use default from DEFAULT_FILE_READER_CLS.
num_files_limit (Optional[int]): Maximum number of files to read.
Default is None.
file_metadata (Optional[Callable[str, Dict]]): A function that takes
in a filename and returns a Dict of metadata for the Document.
Default is None.
fs (Optional[fsspec.AbstractFileSystem]): File system to use. Defaults
to using the local file system. Can be changed to use any remote file system
exposed via the fsspec interface.
"""
