jqfpy 0.2.3

jq for pythonista

jq is too difficult

jq is too difficult, at least for me.

For example, extracting key-name when use is true only, from below JSON data.

{
  "apps": {
    "foo": {
      "use": true
    },
    "bar": {
      "use": true
    },
    "boo": {
      "use": true
    },
    "bee": {
      "use": false
    }
  }
}

What is jq’s answer? (taking over 30 minutes, my past challenges).

$ cat data.json | jq '.apps | . as $$o | keys | map(select($$o[.].use))'
[
  "bar",
  "boo",
  "foo"
]

If you have python’s knowledge, this is tiny oneliner, isn’t it?

$ cat data.json | jqfpy '[k for k, opts in get("apps").items() if opts["use"]]'
[
  "foo",
  "bar",
  "boo"
]

(get() is special function, like a json.load(sys.stdin).get.)

install

pip install jqfpy

how to use

describe syntax

todo.

tutorial

this is jqfpy version of jq’s Tutorial.

alias jsonDATA="curl 'https://api.github.com/repos/stedolan/jq/commits?per_page=5'"
# jq.
jsonDATA | jq '.'
# jqfpy.
jsonDATA | jqfpy 'get()'

# jq.
jsonDATA | jq '.[0]'
# jqfpy.
jsonDATA | jqfpy 'get()[0]'

# jq.
jsonDATA | jq '.[0] | {message: .commit.message, name: .commit.committer.name}'
# jqfpy.
jsonDATA | jqfpy 'd = get()[0]; {"message": get("commit/message", d), "name": get("commit/committer/name", d)}'
# or
jsonDATA | jqfpy '{"message": get("0/commit/message"), "name": get("0/commit/committer/name")}'

# jq.
jsonDATA | jq '.[] | {message: .commit.message, name: .commit.committer.name}'
# jqfpy.
jsonDATA | jqfpy --squash 'L = get(); [{"message": get("commit/message", d), "name": get("commit/committer/name", d)} for d in L]'

# jq.
jsonDATA | jq '[.[] | {message: .commit.message, name: .commit.committer.name, parents: [.parents[].html_url]}]'
# jqfpy.
jsonDATA | 'L = get(); [{"message": get("commit/message", d), "name": get("commit/committer/name", d), "parents": [p["html_url"] for p in d["parents"]]} for d in L]'

0.2.0

• correct behaviours of –slurp and –unbuffered

• support accessing data by json pointer like format

• compact output support

• multiple files support

• exec code only once

0.1.0

• adding some options

• nocode is same as jq . (js == jq .)

• showing pycode when error is raised

0.0.1

• first release