imaplib status command cannot handle folder name containing whitespaces

[0797f837-f61c-45c5-baed-2f25e8ee3fb7]

BPO	23678
Nosy	@bitdancer
Superseder	bpo-917120: imaplib: incorrect quoting in commands

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields: ```python assignee = None closed_at = created_at = labels = ['type-bug', 'library'] title = 'imaplib status command cannot handle folder name containing whitespaces' updated_at = user = 'https://bugs.python.org/bjshan' ``` bugs.python.org fields: ```python activity = actor = 'r.david.murray' assignee = 'none' closed = True closed_date = closer = 'r.david.murray' components = ['Library (Lib)'] creation = creator = 'bjshan' dependencies = [] files = [] hgrepos = [] issue_num = 23678 keywords = [] message_count = 2.0 messages = ['238188', '238210'] nosy_count = 2.0 nosy_names = ['r.david.murray', 'bjshan'] pr_nums = [] priority = 'normal' resolution = 'duplicate' stage = 'resolved' status = 'closed' superseder = '917120' type = 'behavior' url = 'https://bugs.python.org/issue23678' versions = ['Python 3.4'] ```

[0797f837-f61c-45c5-baed-2f25e8ee3fb7]

imaplib status failed if the folder name contains whitespace. For example, c = IMAP4_SSL('hostname') c = login(username, password) c.status('Drafts', '(MESSAGES)') # would succeed c.status('Apple Mail To Do', '(MESSAGES)') # would fail, error message is: imaplib.error: STATUS command error: BAD [b"parse error: wrong character; expected '(' but got 'M'"]

It seems the status method could not properly parse the folder name "Apple Mail To Do", it recognizes only the first word "Apple", then failed when meeting the following word "Mail".

I checked imaplib.py, _command 's definition looks like the cause, but I am not sure:

    def _command(self, name, *args):

        ...    

        name = bytes(name, 'ASCII')
        data = tag + b' ' + name
        for arg in args:
            if arg is None: continue
            if isinstance(arg, str):
                arg = bytes(arg, "ASCII")
            data = data + b' ' + arg

Work around for this: Manually add double quote around the folder name, like:
'"' + mailbox_name + '"'

BUT, while c.status('"Apple Mail To Do"', '(MESSAGES)') worked, c.status("'Apple Mail To Do'", '(MESSAGES)') failed. Suggesting single and double quote weighs not the same?

[bitdancer]

This is a duplicate of a subset of bpo-917120.