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Why is lazy evaluation useful?
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Python has lazily-evaluated infinite lists via iterators
– Mark Cidade
Nov 5 '08 at 15:10
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How to extract text from a PDF? [closed]
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For python, there is PDFMiner and pyPDF2. For more information on these, see Python module for converting PDF to text.
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Sleeping in a batch file
...this question. What follows here is an old answer.
Old answer
If you have Python installed, or don't mind installing it (it has other uses too :), just create the following sleep.py script and add it somewhere in your PATH:
import time, sys
time.sleep(float(sys.argv[1]))
It will allow sub-second ...
Convert a number range to another range, maintaining ratio
...reat example of the function and it's breakdown. I was able to use this in Python by simply adding a def renaming to remap (cause map is a built-in) and removing the type casts and curly braces (ie just remove all the 'long's).
Original
long map(long x, long in_min, long in_max, long out_min, long...
“Too many values to unpack” Exception
...t+'"}'; although all the values are string, it gives me error, I run it on python prompt it is running, but while taking response from web it gives me this exception. can you please suggest whats going wrong.
– MegaBytes
Jan 10 '15 at 8:03
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What is the difference between NaN and None?
...y opinion, to be the best decision given the state of affairs in NumPy and Python in general. The special value NaN (Not-A-Number) is used everywhere as the NA value, and there are API functions isnull and notnull which can be used across the dtypes to detect NA values.
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Thus, I have chosen t...
if else in a list comprehension [duplicate]
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@shihon When 'link' in links.keys() is False, a Python list comprehension skips over the expression to add {'albums': links['link']} to the list. Your code expanded would behave the same way as [x+1 for x in l if x >= 45] in my answer above.
– arbo...
Avoid web.config inheritance in child web application using inheritInChildApplications
...oot <configuration> node and you need to set a path like this:
<?xml version="1.0"?>
<configuration>
<location path="." inheritInChildApplications="false">
<!-- Stuff that shouldn't be inherited goes in here -->
</location>
</configuration>...
How to implement a confirmation (yes/no) DialogPreference?
...re's no reason why it shouldn't).
You can then add it to your preferences.xml like any other Preference. Example:
<com.example.myapp.YesNoPreference
android:dialogMessage="Are you sure you want to revert all settings to their default values?"
android:key="com.example.myapp.pref_reset_se...
Autowiring two beans implementing same interface - how to set default bean to autowire?
...cally equivalent to the <bean> element's primary attribute in Spring XML.
@Primary
public class HibernateDeviceDao implements DeviceDao
Or if you want your Jdbc version to be used by default:
<bean id="jdbcDeviceDao" primary="true" class="com.initech.service.dao.jdbc.JdbcDeviceDao">...