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Pandas read_csv low_memory and dtype options
... do anything, since to numpy, a unicode is represented as object.
Usage of converters
@sparrow correctly points out the usage of converters to avoid pandas blowing up when encountering 'foobar' in a column specified as int. I would like to add that converters are really heavy and inefficient to use ...
PHP equivalent of .NET/Java's toString()
How do I convert the value of a PHP variable to string?
24 Answers
24
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Convert a Map to a POJO
I've been looking at Jackson, but is seems I would have to convert the Map to JSON, and then the resulting JSON to the POJO.
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Make sure only a single instance of a program is running
...Linux.
from tendo import singleton
me = singleton.SingleInstance() # will sys.exit(-1) if other instance is running
The latest code version is available singleton.py. Please file bugs here.
You can install tend using one of the following methods:
easy_install tendo
pip install tendo
manually b...
How to disable and re-enable console logging in Python?
...handler will still log messages of severity logging.WARNING and greater to sys.stderr in the absence of other handlers. See my answer.
– Maggyero
Apr 20 at 22:34
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How to load all modules in a folder?
...reate an empty __init__.py file under Foo/
Execute
import pkgutil
import sys
def load_all_modules_from_dir(dirname):
for importer, package_name, _ in pkgutil.iter_modules([dirname]):
full_package_name = '%s.%s' % (dirname, package_name)
if full_package_name not in sys.modules...
Convert list to array in Java [duplicate]
How can I convert a List to an Array in Java?
11 Answers
11
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Jackson JSON custom serialization for certain fields
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What about the reverse where a String needs to be converted to an int? I don't see ToIntSerializer.class.
– jEremyB
Sep 17 '15 at 19:00
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How to convert jsonString to JSONObject in Java
... What if I don't know the structure of the string. More clearly, how can I convert a Dynamic generated jsonString to jsonObject?
– Saumyaraj
Mar 20 '14 at 7:02
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Converting unix timestamp string to readable date
...presenting a unix timestamp (i.e. "1284101485") in Python, and I'd like to convert it to a readable date. When I use time.strftime , I get a TypeError :
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