Tutorial by Examples: chai

ChainMap is new in version 3.3 Returns a new ChainMap object given a number of maps. This object groups multiple dicts or other mappings together to create a single, updateable view. ChainMaps are useful managing nested contexts and overlays. An example in the python world is found in the implemen...

You can also use tee command to store the output of a command in a file and redirect the same output to another command. The following command will write current crontab entries to a file crontab-backup.txt and pass the crontab entries to sed command, which will do the substituion. After the substi...

The documentation of apply says the following: calls the specified function block with this value as its receiver and returns this value. While the kdoc is not so helpful apply is indeed an useful function. In layman's terms apply establishes a scope in which this is bound to the object you ca...