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How to dynamically create a class?

...rtyType) { FieldBuilder fieldBuilder = tb.DefineField("_" + propertyName, propertyType, FieldAttributes.Private); PropertyBuilder propertyBuilder = tb.DefineProperty(propertyName, PropertyAttributes.HasDefault, propertyType, null); MethodBuilder getPropMt...
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Python logging: use milliseconds in time format

.... This can not be fixed by specifying a datefmt because ct is a time.struct_time and these objects do not record milliseconds. If we change the definition of ct to make it a datetime object instead of a struct_time, then (at least with modern versions of Python) we can call ct.strftime and then we...
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Why use String.Format? [duplicate]

...ing s = string.Format("Hey, {0} it is the {1}st day of {2}. I feel {3}!", _name, _day, _month, _feeling); vs: string s = "Hey," + _name + " it is the " + _day + "st day of " + _month + ". I feel " + feeling + "!"; Format Specifiers (and this includes the fact you can write custom formatters) ...
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How to add column if not exists on PostgreSQL?

...statement: DO $$ BEGIN BEGIN ALTER TABLE <table_name> ADD COLUMN <column_name> <column_type>; EXCEPTION WHEN duplicate_column THEN RAISE NOTICE 'column <column_name> already exists in <table_name>.'; END; END; $$ ...
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How to read if a checkbox is checked in PHP?

...="value1"> After submitting the form you can check it with: isset($_POST['test']) or if ($_POST['test'] == 'value1') ... share | improve this answer | follow ...
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Proper use of beginBackgroundTaskWithExpirationHandler

...ed. Mine tend look something like this: - (void) doUpdate { dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ [self beginBackgroundUpdateTask]; NSURLResponse * response = nil; NSError * error = nil; NSData * responseData = [NSU...
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Nested defaultdict of defaultdict

... For an arbitrary number of levels: def rec_dd(): return defaultdict(rec_dd) >>> x = rec_dd() >>> x['a']['b']['c']['d'] defaultdict(<function rec_dd at 0x7f0dcef81500>, {}) >>> print json.dumps(x) {"a": {"b": {"c": {"d": {}}}}} ...
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How can I add a PHP page to WordPress?

...und that this approach works best, in your .php file: <?php require_once(dirname(__FILE__) . '/wp-config.php'); $wp->init(); $wp->parse_request(); $wp->query_posts(); $wp->register_globals(); $wp->send_headers(); // Your WordPress functions here... ...
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Linux command or script counting duplicated lines in a text file?

...3 } or you can use a simple one-liner: $ cat filename | python3 -c 'print(__import__("json").dumps(__import__("collections").Counter(map(str.strip, __import__("fileinput").input())), indent=2))' share | ...
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AttributeError: 'module' object has no attribute 'tests'

... Instead of fearing use of the "death star" can't you juse use the __all__ variable in each file? And specify a list of class names, functions, and variables to export when using from package_name.module import *? I've had good luck with this pattern. I understand it takes a bit more time...