| Name | aws-cron-expression-validator JSON |
| Version |
1.1.13
JSON |
| download |
| home_page | |
| Summary | ValidatesAWS EventBridge cron expressions, which are similar to, but not compatible with Unix style cron expressions |
| upload_time | 2024-02-08 02:15:10 |
| maintainer | |
| docs_url | None |
| author | |
| requires_python | >=3.7 |
| license | |
| keywords |
|
| VCS |
 |
| bugtrack_url |
|
| requirements |
No requirements were recorded.
|
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No Travis.
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|
[](https://github.com/grumbit/aws_cron_expression_validator/issues)
[](https://github.com/grumbit/aws_cron_expression_validator/blob/master/LICENSE)
[](https://github.com/grumbit/aws_cron_expression_validator/network)
[](https://github.com/grumbit/aws_cron_expression_validator/stargazers)
# AWSCronExpressionValidator
Validates these [AWS EventBridge cron expressions](https://docs.aws.amazon.com/eventbridge/latest/userguide/eb-create-rule-schedule.html#eb-cron-expressions), which are similar to, but not compatible with Unix style cron expressions;
| Field | Values | Wildcards |
| :----------- | :-------------- | :------------- |
| Minute | 0-59 | , - \* / |
| Hour | 0-23 | , - \* / |
| Day-of-month | 1-31 | , - \* ? / L W |
| Month | 1-12 or JAN-DEC | , - \* / |
| Day-of-week | 1-7 or SUN-SAT | , - \* ? L # |
| Year | 1970-2199 | , - \* / |
_NB: It appears AWS is supporting the Quartz Job Scheduler cron expressions. More details than AWS provides is available in the [Cron Trigger Tutorial](http://www.quartz-scheduler.org/documentation/quartz-2.3.0/tutorials/crontrigger.html)._
This was inspired by Niloy Chakraborty's [AWSCronValidator.py](https://gist.github.com/ultrasonex/e1fdb8354408a56df91aa4902d17aa6a) project.
# Installing
To install the library run;
```bash
pip install aws-cron-expression-validator
```
# Usage
```python
from aws_cron_expression_validator.validator import AWSCronExpressionValidator, AWSCronExpressionMinuteError
my_expression = "0 180 ? * MON-FRI *"
try:
AWSCronExpressionValidator.validate(my_expression)
except AWSCronExpressionMinuteError:
print(f"Oh no! My expression has an invalid minute field: {e}")
except ValueError as e:
print(f"Oh no! My expression was invalid: {e}")
```
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