xonsh.lib.lazyjson

Implements a lazy JSON file class that wraps around json data.

class xonsh.lib.lazyjson.LJNode(offsets, sizes, root)

A proxy node for JSON nodes. Acts as both sequence and mapping.

Parameters:

offsetsdict, list, or int

offsets of corresponding data structure, in bytes

sizesdict, list, or int

sizes of corresponding data structure, in bytes

rootweakref.proxy of LazyJSON

weakref back to root node, which should be a LazyJSON object.

count(value) → integer -- return number of occurrences of value

get(k[, d]) → D[k] if k in D, else d.  d defaults to None.

index(value[, start[, stop]]) → integer -- return first index of value.

Raises ValueError if the value is not present.

Supporting start and stop arguments is optional, but recommended.

items() → a set-like object providing a view on D's items

keys() → a set-like object providing a view on D's keys

load()

Returns the Python data structure represented by the node.

values() → an object providing a view on D's values

class xonsh.lib.lazyjson.LazyJSON(f, reopen=True)

Represents a lazy json file. Can be used like a normal Python dict or list.

Parameters:

ffile handle or str

JSON file to open.

reopenbool, optional

Whether new file handle should be opened for each load.

close()

Close the file handle, if appropriate.

count(value) → integer -- return number of occurrences of value

get(k[, d]) → D[k] if k in D, else d.  d defaults to None.

index(value[, start[, stop]]) → integer -- return first index of value.

Raises ValueError if the value is not present.

Supporting start and stop arguments is optional, but recommended.

items() → a set-like object providing a view on D's items

keys() → a set-like object providing a view on D's keys

load()

Returns the Python data structure represented by the node.

values() → an object providing a view on D's values

xonsh.lib.lazyjson.dumps(obj, sort_keys=False)

Dumps an object to JSON with an index.

xonsh.lib.lazyjson.index(obj, sort_keys=False)

Creates an index for a JSON file.

xonsh.lib.lazyjson.ljdump(obj, fp, sort_keys=False)

Dumps an object to JSON file.