This is a pre-production deployment of Warehouse, however changes made here WILL affect the production instance of PyPI.
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Project Description

Pure python. Path keys. ChainedMap on steroids.


Pure python.

pip install multiplane


Contexts are python dictionaries with path lookups:

import multiplane

context = multiplane.Context()

# normal dictionary operations
context["foo"] = "bar"
assert "bar" == context["foo"]
del context["foo"]

# paths
context[""] = "baz"
assert "baz" == context[""]
del context[""]

# length, iteration
n = 10
context.update((i, i+1) for i in range(n))
assert len(context) == n

for key, value in context.items():
    assert key + 1 == value

But they also track contextual changes:

ctx = multiplane.Context()
ctx["root.layer.key"] = "root_value"

with ctx("layer1"):
    # read through
    assert "root_value" == ctx["root.layer.key"]
    # local to layer1
    ctx["layer1.key"] = "layer1_value"

# layer1 not active
assert "layer1.key" not in ctx

# manually push layer1 back on
assert "layer1_value" == ctx["layer1.key"]

# global context
# WARNING: be careful in the reserved area of the global root,
# as you can break the context tracking.
assert ctx.g is ctx.g["_.root"]
assert ctx.g is ctx.g["_.current"]

# all contexts are available from the root node
assert "layer1" in ctx.g["_.contexts"]
assert "layer1.key" in ctx.g["_.contexts.layer1"]
assert "layer1_value" == ctx.g["_.contexts.layer1.layer1.key"]

# nesting:
ctx["root_key"] = "root_value"

with ctx("layer1"):
    ctx["layer1_key"] = "layer1_value"

    with ctx("layer2"):
        ctx["layer2_key"] = "layer2_value"

        assert "root_key" in ctx
        assert "layer1_key" in ctx
        assert "layer2_key" in ctx

    # Lost layer2
    assert "root_key" in ctx
    assert "layer1_key" in ctx
    assert "layer2_key" not in ctx

# Lost layer1, layer2
assert "root_key" in ctx
assert "layer1_key" not in ctx
assert "layer2_key" not in ctx
Release History

Release History


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TODO: Figure out how to actually get changelog content.

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