Today I learned
Fun Vim shortcut of the day: map <F7> :!pytest %<CR> "Run pytest for the current file on buffer
Gustavo Carvalho
Lessons about Python (page 11)
The links, tools and tips our engineers and designers share with each other, one “today I learned” at a time.
- lessons shared
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- people sharing
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- 2016
Fun Vim shortcut of the day:
Tech Insights
Fun Vim shortcut of the day:
map <F7> :!pytest %<CR> "Run pytest for the current file on bufferShared by
- Python
- Vim
astronomer.io
Dynamically Generating DAGs in Airflow:
Get to know the best ways to dynamically generate DAGs in Apache Airflow. Use examples to generate DAGs using single- and multiple-file methods.
Flávio Juvenal
Tech Insights· astronomer.io
Dynamically Generating DAGs in Airflow:
From astronomer.io
Get to know the best ways to dynamically generate DAGs in Apache Airflow. Use examples to generate DAGs using single- and multiple-file methods.
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Read on astronomer.io- Airflow
- Python
Tech Insights· stackoverflow.com
Fix path to import local modules in Airflow DAG code:
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Read on stackoverflow.com- Airflow
- Python
docs.python.org
pdb.pm()puts a breakpoint at the traceback found insys.last_traceback. This is really useful when you're running some ...pdb.pm() puts a breakpoint at the traceback found in sys.last_traceback . This is really useful when you're running some method in a console and you need a breakpoint at the moment the code threw the exception. See more at: #pdb.pm
Carlos Coelho
Tech Insights· docs.python.org
pdb.pm()puts a breakpoint at the traceback found insys.last_traceback. This is really useful when you're running some ...pdb.pm()puts a breakpoint at the traceback found insys.last_traceback. This is really useful when you're running some method in a console and you need a breakpoint at the moment the code threw the exception. See more at: #pdb.pmShared by
Read on docs.python.org- Debugging
- Python
Tech Insights
If in your tests you want to return different values when calling the same function use
side_effectinstead ofreturn_valuelike this:mock_func.side_effect = [return_value1, return_value2]Shared by
- Mock
- Python
- Tests
Tech Insights· medium.com
How to scale Python multiprocessing to a cluster with one line of code:
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Read on medium.com- Concurrency
- Multiprocessing
- Python
- Ray
Tech Insights· matthewrocklin.com
Experiments with Disk Bandwidth:
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Read on matthewrocklin.com- Bandwidth
- Disk
- Python
Tech Insights· stackoverflow.com
When should we call multiprocessing.Pool.join?
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Read on stackoverflow.com- Concurrency
- Python
Tech Insights· heartbeat.fritz.ai
A Practical Guide to Feature Engineering in Python:
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Read on heartbeat.fritz.ai- Data Science
- ML
- Python
pythonspeed.com
Alpine makes Python Docker builds 50× slower, and images 2× larger
Alpine Linux is often recommended as a smaller, faster Docker base image. But if you’re using Python, it will slow down your build and make your image larger.
Gustavo Carvalho
Tech Insights· pythonspeed.com
Alpine makes Python Docker builds 50× slower, and images 2× larger
From pythonspeed.com
Alpine Linux is often recommended as a smaller, faster Docker base image. But if you’re using Python, it will slow down your build and make your image larger.
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Read on pythonspeed.com- Docker
- Python
docs.scipy.org
numpy has a really handy function called
is_busdayto check whether a given date is business day or not, it also can receiv...numpy has a really handy function called is_busday to check whether a given date is business day or not, it also can receive a list of parameters to give this functionality a power boost such as weekmask (if you need a custom definition for weekdays) and holiday calendar
Carlos Coelho
Tech Insights· docs.scipy.org
numpy has a really handy function called
is_busdayto check whether a given date is business day or not, it also can receiv...numpy has a really handy function called
is_busdayto check whether a given date is business day or not, it also can receive a list of parameters to give this functionality a power boost such as weekmask (if you need a custom definition for weekdays) and holiday calendarShared by
Read on docs.scipy.org- Numpy
- Python
Today I learned
You don't need a hacky snippet to manipulate dates into the a specific moment, such as EOD.
datetime.datetime.combinecan d...You don't need a hacky snippet to manipulate dates into the a specific moment, such as EOD. datetime.datetime.combine can do that for you as it receives three parameters: date (can be datetime too), time and tzinfo , the latter being an optional argument. The following snippet will put a given date into EOD: ``` from datetime import datetime, time date = datetime.strptime("2019-01-01", "%Y-%m-%d") # datetime.datetime(2029, 1, 1, 0, 0) eod_date = datetime.combine(date, time.max) # datetime.datetime(2029, 1, 1, 23, 59, 59, 999999) ```
Carlos Coelho
Tech Insights
You don't need a hacky snippet to manipulate dates into the a specific moment, such as EOD.
datetime.datetime.combinecan d...You don't need a hacky snippet to manipulate dates into the a specific moment, such as EOD.
datetime.datetime.combinecan do that for you as it receives three parameters:date(can bedatetimetoo),timeandtzinfo, the latter being an optional argument. The following snippet will put a given date into EOD:``` from datetime import datetime, time
date = datetime.strptime("2019-01-01", "%Y-%m-%d") # datetime.datetime(2029, 1, 1, 0, 0) eod_date = datetime.combine(date, time.max) # datetime.datetime(2029, 1, 1, 23, 59, 59, 999999) ```
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- Python
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