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<@U06RKAMK0UC> how can I pass a variable parameter...
# ask-ai
g
@ancient-wolf-19325 how can I pass a variable parameter into a flyte job
j
To pass a variable parameter into a Flyte job, you can use the 
@dynamic
decorator to generate tasks at runtime with custom configurations. Here's an example:
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from flytekit import task, dynamic, workflow
from flytekitplugins.kfmpi import TFJob

@task(task_config=TFJob(num_workers=1, num_ps=1))
def run_tfjob(config_path: str) -> str:
    return "hello world"

@dynamic
def run(num_workers: int, config_path: str) -> str:
    return run_tfjob(config_path=config_path).with_overrides(task_config=TFJob(
                           num_workers=num_workers,
                           num_ps_replicas=1,
                           num_chief_replicas=1,
                       ))

@workflow
def ranker_cold_start_training(cold_start_config: str, num_workers: int) -> str:
    return run(num_workers=num_workers, config_path=cold_start_config)
This approach allows you to pass 
num_workers
as a parameter to the workflow, which then dynamically configures the task. Would you like more detail? Sources: - Flyte Community Discussion 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.
g
@ancient-wolf-19325 how can I pass a parameter on the command line when using pyflyte run
j
To pass a parameter on the command line when using 
pyflyte run
, you can specify the parameter directly in the command. Here's an example: 1. Define the workflow and task in a Python file (e.g., 
example.py
):
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from flytekit import task, workflow

@task
def say_hello(name: str) -> str:
    return f"Hello, {name}!"

@workflow
def hello_world_wf(name: str = 'world') -> str:
    return say_hello(name=name)
2. Run the workflow with a parameter using `pyflyte run`:
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pyflyte run example.py hello_world_wf --name Ada
This command runs the 
hello_world_wf
workflow and passes the parameter 
name
with the value 
Ada
. Would you like more detail? Sources: - Flyte Quickstart Guide - Flyte Quickstart Guide (Web) 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.
g
@ancient-wolf-19325 run pyflyte command in shell script
j
To run a 
pyflyte
command in a shell script, you can simply include the 
pyflyte run
command within your script. Here's an example: 1. Create a Python file (e.g., 
example.py
) with your Flyte workflow:
Copy code
from flytekit import task, workflow

@task
def say_hello(name: str) -> str:
    return f"Hello, {name}!"

@workflow
def hello_world_wf(name: str = 'world') -> str:
    return say_hello(name=name)
2. Create a shell script (e.g., 
run_flyte.sh
) to execute the 
pyflyte run
command:
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#!/bin/bash

# Run the Flyte workflow with a parameter
pyflyte run example.py hello_world_wf --name Ada
3. Make the shell script executable:
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chmod +x run_flyte.sh
4. Execute the shell script:
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./run_flyte.sh
This will run the 
hello_world_wf
workflow with the parameter 
name
set to 
Ada
. Would you like more detail? Sources: - Flyte Quickstart Guide - Flyte Environment Setup 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.
g
@ancient-wolf-19325 pyflyte run in bash script results in AttributeError: 'str' object has no attribute 'items'
j
The error 
AttributeError: 'str' object has no attribute 'items'
typically occurs when there is a mismatch in the expected input type for a Flyte task or workflow. This can happen if the command-line arguments are not correctly parsed or passed. To troubleshoot this, ensure that the parameters are correctly formatted and passed to the 
pyflyte run
command. Here's an example of how to structure your Python file and bash script: 1. Create a Python file (e.g., 
example.py
) with your Flyte workflow:
Copy code
from flytekit import task, workflow

@task
def say_hello(name: str) -> str:
    return f"Hello, {name}!"

@workflow
def hello_world_wf(name: str = 'world') -> str:
    return say_hello(name=name)
2. Create a shell script (e.g., 
run_flyte.sh
) to execute the 
pyflyte run
command:
Copy code
#!/bin/bash

# Run the Flyte workflow with a parameter
pyflyte run example.py hello_world_wf --name "Ada"
3. Make the shell script executable:
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chmod +x run_flyte.sh
4. Execute the shell script:
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./run_flyte.sh
If the error persists, ensure that the Flyte version and dependencies are up-to-date. Additionally, verify that the 
pyflyte
command is correctly installed and accessible in your environment. Would you like more detail? Sources: - https://github.com/flyteorg/flyte/issues/3004 - https://github.com/flyteorg/flyte/issues/5473 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.
g
@ancient-wolf-19325 pyflyte run works on command line but not in a bash script
j
If 
pyflyte run
works on the command line but not in a bash script, it could be due to differences in the environment or how the script is executed. Here are some steps to troubleshoot and resolve the issue: 1. Check Environment Variables: Ensure that the environment variables are correctly set in the bash script. You might need to source your environment setup in the script. 2. Use Absolute Paths: Use absolute paths for the 
pyflyte
command and any files referenced in the script to avoid issues with relative paths. 3. Debugging: Add debugging statements to your script to print the environment and paths. Here is an example of a bash script that includes these steps: 1. Create a Python file (e.g., 
example.py
) with your Flyte workflow:
Copy code
from flytekit import task, workflow

@task
def say_hello(name: str) -> str:
    return f"Hello, {name}!"

@workflow
def hello_world_wf(name: str = 'world') -> str:
    return say_hello(name=name)
2. Create a shell script (e.g., 
run_flyte.sh
) to execute the 
pyflyte run
command:
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#!/bin/bash

# Print environment variables for debugging
echo "Environment Variables:"
printenv

# Use absolute paths
PYFLYTE_PATH="/path/to/pyflyte"
SCRIPT_PATH="/path/to/example.py"

# Run the Flyte workflow with a parameter
$PYFLYTE_PATH run $SCRIPT_PATH hello_world_wf --name "Ada"
3. Make the shell script executable:
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chmod +x run_flyte.sh
4. Execute the shell script:
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./run_flyte.sh
If the issue persists, ensure that the 
pyflyte
command is correctly installed and accessible in the environment where the script is executed. You can also try running the script with 
bash -x
to get more detailed output for debugging:
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bash -x run_flyte.sh
Would you like more detail? Sources: - https://github.com/flyteorg/flyte/issues/4503 - https://github.com/flyteorg/flyte/issues/3008 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.
g
@ancient-wolf-19325 pyflyte run in shell loop
j
To run 
pyflyte run
in a shell loop, you can use a 
for
or 
while
loop in your bash script. Here's an example of how to do this: 1. Create a Python file (e.g., 
example.py
) with your Flyte workflow:
Copy code
from flytekit import task, workflow

@task
def say_hello(name: str) -> str:
    return f"Hello, {name}!"

@workflow
def hello_world_wf(name: str = 'world') -> str:
    return say_hello(name=name)
2. Create a shell script (e.g., 
run_flyte_loop.sh
) to execute the 
pyflyte run
command in a loop:
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#!/bin/bash

# Define an array of names
names=("Ada" "Grace" "Marie")

# Loop through each name and run the Flyte workflow
for name in "${names[@]}"; do
    echo "Running workflow for $name"
    pyflyte run example.py hello_world_wf --name "$name"
done
3. Make the shell script executable:
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chmod +x run_flyte_loop.sh
4. Execute the shell script:
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./run_flyte_loop.sh
This script will run the 
hello_world_wf
workflow for each name in the 
names
array. Would you like more detail? Sources: - Flyte Quickstart Guide - Flyte Environment Setup 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.
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