A simple command line todo list manager which can be as powerful as you want it do be.

$ todo -a "Fix the stuff"
$ todo
    1 | Fix the stuff
$ todo -a "Fix the other thing"
$ todo
    1 | Fix the stuff
    2 | Fix the other thing
$ todo -d 1
$ todo
    2 | Fix the other thing

Install the todocli package for Python 3 via pip.

Add a task to do using the -a or --add option:

$ todo -a "Do the thing"

See what you have to do by passing no option:

$ todo
    1 | Do the thing

The tasks shown first are the ones you entered first:

$ todo -a "Fix the stuff"
$ todo
    1 | Do the thing
    2 | Fix the stuff

Set a task as done using the -d or --done option, with the task's ID as value:

$ todo -d 1
$ todo
    2 | Fix the stuff

Set a deadline to a task using the --deadline option. The value is a date in the YYYY-MM-DD format:

$ todo -a "Buy the gift for Stefany" --deadline 2016-02-25
$ todo
    3 | Buy the gift for Stefany ⌛ 16 days remaining
    2 | Fix the stuff

Tasks with a deadline show up before tasks with no deadline, and tasks with closer deadlines are shown first. In the following example, a deadline is set using a delay instead of a date. Delays are specified using the letters s, m, h, d, w which respectively correspond to seconds, minutes, hours, days and weeks.

$ todo -a "Send the documents for the house" --deadline 1w
$ todo
    4 | Send the documents for the house ⌛ 6 days remaining
    3 | Buy the gift for Stefany ⌛ 16 days remaining
    2 | Fix the stuff

Let's schedule the buying of a fireworks package for the 4th of July:

$ todo -a "Buy the fireworks package" --deadline 2016-07-04
$ todo 
    4 | Send the documents for the house ⌛ 6 days remaining
    3 | Buy the gift for Stefany ⌛ 16 days remaining
    5 | Buy the fireworks package ⌛ 146 days remaining
    2 | Fix the stuff

Since it's a long-term task, you probably don't want it to be shown in the middle of tasks that need to be done quickly.

You can use the -s or --start option in order to set a start-point to the task. The task will show up in the todo list only starting from the start-point. The value of -s is in the same format than for --deadline: a date or a delay. Let's say we want to be bothered by the fireworks thing starting from the middle of June.

$ todo -t 5 -s 2016-06-15
$ todo
    4 | Send the documents for the house ⌛ 6 days remaining
    3 | Buy the gift for Stefany ⌛ 16 days remaining
    2 | Fix the stuff

The task won't show up until 2016-06-15.

In this example, we used the -t (--task) option to select a task to apply a modifier to. All the modifiers available when creating a task with the -a option are also available when selecting a task with the -t option.

You can assign a priority to a task using the -p or --priority option. Priorities are integers; the higher the integer, the higher the priority. Tasks with a higher priority are shown first. By default, tasks have a priority of 1.

$ todo -a "Fix the window" -p 3
$ todo
    6 | Fix the window ★3
    4 | Send the documents for the house ⌛ 6 days remaining
    3 | Buy the gift for Stefany ⌛ 16 days remaining
    2 | Fix the stuff
$ todo -t 2 -p 2
$ todo
    6 | Fix the window ★3
    2 | Fix the stuff ★2
    4 | Send the documents for the house ⌛ 6 days remaining
    3 | Buy the gift for Stefany ⌛ 16 days remaining

You can assign a context to a task using the -c or --context option. Contexts are strings.

$ todo -a "Read the article about chemistry" -c culture
$ todo
    6 | Fix the window ★3
    2 | Fix the stuff ★2
    4 | Send the documents for the house ⌛ 6 days remaining
    3 | Buy the gift for Stefany ⌛ 16 days remaining
    7 | Read the article about chemistry #culture

When used alone, the -c option filters tasks according to their context:

$ todo -c culture
    7 | Read the article about chemistry #culture

You can define contexts within contexts using the dot notation:

$ todo -t 7 -c culture.chemistry
$ todo -c culture
    7 | Read the article about chemistry #culture.chemistry
$ todo -a "Listen to the podcast about movies" -c culture.cinema
$ todo -c culture
    7 | Read the article about chemistry #culture.chemistry
    8 | Listen to the podcast about movies #culture.cinema
$ todo -c culture.chemistry
    7 | Read the article about chemistry #culture.chemistry

Tasks have a visibility which impacts on what tasks are listed when you use the --context option or its shorthand -c. There are three kinds of visibility: hidden, discreet or wide. The default is discreet.

• hidden means that the task will show up only if its context is exactly the one given in the command line. So hello.world.yeah will only match hello.world.yeah.

• discreet means that the task will show up only if its context is a subcontext of the one given in the command line. hello.world.yeah is a subcontext of hello.world and also a subcontext of hello. Discreet tasks which have a top-level context will also show up when no context is specified in the command line, such as culture in the previous examples.

• wide is the same as discreet, but the task will always show up when no context is specified in the command line, even if the task doesn't have a top-level context.

For example, continuing on the previous example, if you show the general todolist:

$ todo
    6 | Fix the window ★3
    2 | Fix the stuff ★2
    4 | Send the documents for the house ⌛ 6 days remaining
    3 | Buy the gift for Stefany ⌛ 11 days remaining

You realize that the cultural tasks have disappeared. That's because these tasks don't have a top-level context. They have sub-level contexts, namely culture.chemistry and culture.movies. Being discreet by default, these tasks will only show up when you query the todolist with a super-context of their context, culture in this case:

$ todo -c culture
    7 | Read the article about chemistry #culture.chemistry
    8 | Listen to the podcast about movies #culture.cinema

If you really want them to be shown in the general todolist, you can set their visibility to "wide", using the -v or --visibility option:

$ todo -t 7 -v wide
$ todo -t 8 -v wide
$ todo
    6 | Fix the window ★3
    2 | Fix the stuff ★2
    4 | Send the documents for the house ⌛ 6 days remaining
    3 | Buy the gift for Stefany ⌛ 11 days remaining
    7 | Read the article about chemistry #culture.chemistry
    8 | Listen to the podcast about movies #culture.cinema

On the opposite, if you want a task to appear only if you query the todolist with its exact context, you can set its visibility to "hidden".

$ todo -t 7 -v hidden
$ todo
    6 | Fix the window ★3
    2 | Fix the stuff ★2
    4 | Send the documents for the house ⌛ 6 days remaining
    3 | Buy the gift for Stefany ⌛ 11 days remaining
    8 | Listen to the podcast about movies #culture.cinema
$ todo -c culture
    8 | Listen to the podcast about movies #culture.cinema
$ todo -c culture.chemistry
    7 | Read the article about chemistry #culture.chemistry

You can specify the visibility of a context. This visibility will apply to all the tasks belonging to the context (and to the future tasks belonging to the context):

$ todo -c culture.cinema -v wide

This only applies to tasks which match the exact context, and this doesn't recurse to subcontexts.

You can specify a priority to a whole context:

$ todo -c health -p 10

Tasks with this context will always show up before tasks with a lower context priority.

When showing the todolist, tasks are sorted in the following order:

• Priority, descending

• Remaining time, ascending

• Context priority, descending

• Date added, ascending