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TypeError: unhashable type: 'dict'
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You're trying to use a dict as a key to another dict or in a set. That does not work because the keys have to be hashable. As a general rule, only immutable objects (strings, integers, floats, frozensets, tuples of immutables) are hashable (though exceptions...
Converting a Date object to a calendar object [duplicate]
...case letter, so it should be: dateToCalendar or toCalendar (as shown).
OK, let's milk your code, shall we?
DateFormat formatter = new SimpleDateFormat("yyyyMMdd");
date = (Date)formatter.parse(date.toString());
DateFormat is used to convert Strings to Dates (parse()) or Dates to Strings (form...
What's the difference between the build and create methods in FactoryGirl?
...reate() method persists the instance of the model while the build() method keeps it only on memory.
Personally, I use the create() method only when persistence is really necessary since writing to DB makes testing time consuming.
e.g.
I create users to authentication with create() because my aut...
How to set host_key_checking=false in ansible inventory file?
I would like to use ansible-playbook command instead of ' vagrant provision '. However setting host_key_checking=false in the hosts file does not seem to work.
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What's the difference between emulation and simulation? [duplicate]
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(Using as an example your first link)
You want to duplicate the behavior of an old HP calculator, there are two options:
You write new program that draws the calculator's display and keys, and when the user clicks on the keys, your programs does what the ol...
How to round the minute of a datetime object
... the 'floor' of a datetime object stored in tm rounded to the 10 minute mark before tm.
tm = tm - datetime.timedelta(minutes=tm.minute % 10,
seconds=tm.second,
microseconds=tm.microsecond)
If you want classic rounding to the nearest 10 min...
List Git aliases
...append | sort just before the closing double-quote. Alternatively, you can keep the aliases in ~/.gitconfig sorted.
To add the alias as a system-wide alias, replace --global (for current user) with --system (for all users). This typically goes in the /etc/gitconfig file.
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Set Value of Input Using Javascript Function
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Sergio Tulentsev
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answered Apr 18 '11 at 8:52
Sangeet MenonSa...
What's “tools:context” in Android layout files?
...efault. This enables features in the editor or layout preview that require knowledge of the activity, such as what the layout theme should be in the preview and where to insert onClick handlers when you make those from a quickfix
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#ifdef replacement in the Swift language
...alue when in Debug or when in Release.
I tested it in real code and it works; it doesn't seem to be recognized in a playground though.
You can read my original post here.
IMPORTANT NOTE: -DDEBUG=1 doesn't work. Only -D DEBUG works. Seems compiler is ignoring a flag with a specific value.
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