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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_variable_name_col(d):
 """ Get the variable name from a table or column :param dict d: Metadata (column) :return str var: Variable name """

    var = ""
    try:
        var = d["variableName"]
    except KeyError:
        try:
            var = d["name"]
        except KeyError:
            num = "unknown"
            if "number" in d:
                num = d["number"]
            print("Error: column number <{}> is missing a variableName. Please fix.".format(num))
            logger_misc.info("get_variable_name_col: KeyError: missing key")
    return var