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How to use PyCharm to debug Scrapy projects
I am working on Scrapy 0.20 with Python 2.7. I found PyCharm has a good Python debugger. I want to test my Scrapy spiders using it. Anyone knows how to do that please?
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Correct way to pause Python program
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Seems fine to me (or raw_input() in Python 2.X). Alternatively you could use time.sleep() if you want to pause for a certain number of seconds.
import time
print("something")
time.sleep(5.5) # pause 5.5 seconds
print("something")
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Equivalent to 'app.config' for a library (DLL)
...lue="Connection string body goes here" />
</appSettings>
OR
An xml file is best equivalent for app.config. Use xml serialize/deserialize as
needed. You can call it what every you want. If your config is "static"
and does not need to change, your could also add it to the project as an
e...
When I catch an exception, how do I get the type, file, and line number?
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@DanielPryden Python docs are also using the same unpacking method docs.python.org/2/library/traceback.html#traceback-examples
– user
Aug 7 '14 at 3:49
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Python date string to date object
How do I convert a string to a date object in python?
7 Answers
7
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Implicit “Submit” after hitting Done on the keyboard at the last EditText
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In your XML file inside your edittext tag add below snippet
android:imeOptions="actionDone"
Then inside your Java class, write the below code
editText.setOnEditorActionListener(new EditText.OnEditorActionListener() {
@Overrid...
How to get line count of a large file cheaply in Python?
...ed to get a line count of a large file (hundreds of thousands of lines) in python. What is the most efficient way both memory- and time-wise?
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Is there a decorator to simply cache function return values?
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Starting from Python 3.2 there is a built-in decorator:
@functools.lru_cache(maxsize=100, typed=False)
Decorator to wrap a function with a memoizing callable that saves up to the maxsize most recent calls. It can save time when an expen...
What is the python “with” statement designed for?
I came across the Python with statement for the first time today. I've been using Python lightly for several months and didn't even know of its existence! Given its somewhat obscure status, I thought it would be worth asking:
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Print string to text file
I'm using Python to open a text document:
5 Answers
5
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