Return to Question

I wanted to ask this here because what I wanted to originally do felt like a really Pythonic method. I want to be able to use the syntax:

d = {'apple':{'cranberry':{'banana':{'chocolate':[1,2,3,4,5,6]}}},'b':2}
with d['apple']['cranberry']['banana']['chocolate'] as item:
    for i in item:
        print(i)

    item.append('k')

but found that Python doesn't allow for using lists, dicts, etc. as context managers.

So I implemented my own:

def context_wrap(target):
    class ContextWrap:
        def __init__(self, tgt):
            self._tgt = tgt

        def __enter__(self):
            return self._tgt

        def __exit__(self, type, value, traceback):
            pass

    return ContextWrap(target)

if __name__ == '__main__':
    with context_wrap({'a':1}) as item:
        print(item['a'])

    with context_wrap([1,2,3,4,5]) as item:
        print(item[1])

    with context_wrap(3) as item:
        print (item)

In the above code, you can take any random object and wrap it inside an object that acts as a context manager controlling the underlying object. This means that inside any with clause, you can simply use the object with it's alias. I feel like it looks a lot cleaner and clearer than something like:

alias = d['apple']['cranberry']['banana']['chocolate']
for i in alias:
    print(i)

alias.append('k')

I wanted to know if there was a more "Pythonic" way to do it. So the improvement that I'm looking for is in terms of better reliance on the standard Python library and/or in terms of my syntax.

I wanted to ask this here because what I wanted to originally do felt like a really Pythonic method. I want to be able to use the syntax:

d = {'apple':{'cranberry':{'banana':{'chocolate':[1,2,3,4,5,6]}}},'b':2}
with d['apple']['cranberry']['banana']['chocolate'] as item:
    for i in item:
        print(i)

    item.append('k')

but found that Python doesn't allow for using lists, dicts, etc. as context managers.

So I implemented my own:

def context_wrap(target):
    class ContextWrap:
        def __init__(self, tgt):
            self._tgt = tgt

        def __enter__(self):
            return self._tgt

        def __exit__(self, type, value, traceback):
            pass

    return ContextWrap(target)

if __name__ == '__main__':
    with context_wrap({'a':1}) as item:
        print(item['a'])

    with context_wrap([1,2,3,4,5]) as item:
        print(item[1])

    with context_wrap(3) as item:
        print (item)

In the above code, you can take any random object and wrap it inside an object that acts as a context manager controlling the underlying object. This means that inside any with clause, you can simply use the object with its alias. I feel like it looks a lot cleaner and clearer than something like:

alias = d['apple']['cranberry']['banana']['chocolate']
for i in alias:
    print(i)

alias.append('k')

I wanted to know if there was a more "Pythonic" way to do it. So the improvement that I'm looking for is in terms of better reliance on the standard Python library and/or in terms of my syntax.

I wanted to ask this here because what I wanted to originally do felt like a really Pythonic method. I want to be able to use the syntax:

d = {'a':{'c':4},'b':2}
with d['a'] as item:
    print(item['c'])

but found that Python doesn't allow for using lists, dicts, etc. as context managers.

So I implemented my own:

def context_wrap(target):
    class ContextWrap:
        def __init__(self, tgt):
            self._tgt = tgt

        def __enter__(self):
            return self._tgt

        def __exit__(self, type, value, traceback):
            pass

    return ContextWrap(target)

if __name__ == '__main__':
    with context_wrap({'a':1}) as item:
        print(item['a'])

    with context_wrap([1,2,3,4,5]) as item:
        print(item[1])

    with context_wrap(3) as item:
        print (item)

but I wanted to know if there was a more "Pythonic" way to do it. So the improvement that I'm looking for is in terms of better reliance on the standard Python library and/or in terms of my syntax.

I wanted to ask this here because what I wanted to originally do felt like a really Pythonic method. I want to be able to use the syntax:

d = {'apple':{'cranberry':{'banana':{'chocolate':[1,2,3,4,5,6]}}},'b':2}
with d['apple']['cranberry']['banana']['chocolate'] as item:
    for i in item:
        print(i)

    item.append('k')

but found that Python doesn't allow for using lists, dicts, etc. as context managers.

So I implemented my own:

def context_wrap(target):
    class ContextWrap:
        def __init__(self, tgt):
            self._tgt = tgt

        def __enter__(self):
            return self._tgt

        def __exit__(self, type, value, traceback):
            pass

    return ContextWrap(target)

if __name__ == '__main__':
    with context_wrap({'a':1}) as item:
        print(item['a'])

    with context_wrap([1,2,3,4,5]) as item:
        print(item[1])

    with context_wrap(3) as item:
        print (item)

In the above code, you can take any random object and wrap it inside an object that acts as a context manager controlling the underlying object. This means that inside any with clause, you can simply use the object with it's alias. I feel like it looks a lot cleaner and clearer than something like:

alias = d['apple']['cranberry']['banana']['chocolate']
for i in alias:
    print(i)

alias.append('k')

I wanted to know if there was a more "Pythonic" way to do it. So the improvement that I'm looking for is in terms of better reliance on the standard Python library and/or in terms of my syntax.