@ancient-wolf-19325 how do you provide FlyteFile as input to other libraries like pymupdf

To provide a FlyteFile as input to libraries like pymupdf, you should use the FlyteFile's .path attribute, which gives the local file path after Flyte downloads the file (if remote). For example, you can open the file with pymupdf using fitz.open(ff.path), where ff is a FlyteFile instance. This works because FlyteFile implements the os.PathLike interface and ensures the file is available locally when accessed this way. See the FlyteFile documentation and FlyteFile implementation for details. Would you like a code example or more detail on handling remote files with FlyteFile? Sources: - FlyteFile documentation - FlyteFile implementation 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

@ancient-wolf-19325 how would you save a FlyteFile using libraries like pymupdf

To save a FlyteFile using libraries like pymupdf, write the output to a local file path (e.g., with fitz.Document.save("output.pdf")), then return FlyteFile("output.pdf") from your task. Flyte will upload this file to the blob store and pass it as a FlyteFile to downstream tasks. This approach is standard for integrating file outputs from external libraries with Flyte. See the FlyteFile documentation for details. Would you like a code example for this pattern? Sources: - FlyteFile documentation 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

@ancient-wolf-19325 can you save multiple local files as FlyteFiles in a single task?

Yes, you can save and return multiple local files as FlyteFiles in a single task by returning them as a tuple, list, or dictionary of FlyteFile objects. Each file should be written to disk and wrapped as a FlyteFile before returning. This is supported by Flyte's type system and is a common pattern for tasks with multiple file outputs. See the FlyteFile documentation for details. Would you like a code example demonstrating this? Sources: - FlyteFile documentation 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

@ancient-wolf-19325 yes please

Here is a code example showing how to save and return multiple local files as FlyteFiles in a single task:

from flytekit import task, workflow
from flytekit.types.file import FlyteFile

@task
def create_files() -> tuple[FlyteFile, FlyteFile]:
    # Write first file
    with open("file1.txt", "w") as f1:
        f1.write("This is file 1.")
    # Write second file
    with open("file2.txt", "w") as f2:
        f2.write("This is file 2.")
    # Return as FlyteFiles
    return FlyteFile("file1.txt"), FlyteFile("file2.txt")

@workflow
def wf() -> tuple[FlyteFile, FlyteFile]:
    return create_files()

Each returned FlyteFile will be uploaded to the Flyte blob store and can be used as input to downstream tasks. For more, see the FlyteFile documentation. Sources: - FlyteFile documentation 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

@ancient-wolf-19325 can the file be created in a different python function and then converted to a FlyteFile in the task? i.e TaskA calls functionA, which returns a filePath, which then is converted into FlyteFile

Yes, you can create a file in a separate Python function (e.g., functionA), return its file path, and then wrap that path as a FlyteFile in your task (TaskA). This is supported and works as expected: the task should return FlyteFile(file_path) after receiving the path from functionA. See the FlyteFile documentation for details. Would you like a code example for this pattern? Sources: - FlyteFile documentation 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

@ancient-wolf-19325 can you give me example code of how to create directory structure while creating files in a task which can then be converted to FlyteFiles

Yes, you can create a directory structure and files within it in a task, then return each file as a FlyteFile by passing their paths to FlyteFile(). Here’s an example:

from flytekit import task, workflow
from flytekit.types.file import FlyteFile
import os

def create_dir_and_files(base_dir: str):
    os.makedirs(base_dir, exist_ok=True)
    file1 = os.path.join(base_dir, "a.txt")
    file2 = os.path.join(base_dir, "subdir", "b.txt")
    os.makedirs(os.path.dirname(file2), exist_ok=True)
    with open(file1, "w") as f:
        f.write("File A")
    with open(file2, "w") as f:
        f.write("File B")
    return file1, file2

@task
def create_files_task() -> tuple[FlyteFile, FlyteFile]:
    file1, file2 = create_dir_and_files("mydir")
    return FlyteFile(file1), FlyteFile(file2)

@workflow
def wf() -> tuple[FlyteFile, FlyteFile]:
    return create_files_task()

This creates a directory with nested files and returns them as FlyteFiles. For more, see the FlyteFile documentation. Sources: - https://www.union.ai/docs/v2/flyte/user-guide/task-programming/files-and-directories/ - https://github.com/flyteorg/flytekit/blob/master/tests/flytekit/unit/core/test_local_raw_container.py 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.