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No appenders could be found for logger(log4j)?
...his occurs when the default configuration files log4j.properties and log4j.xml can not be found and the application performs no explicit configuration.
To fix that, simply create/copy log4j.properties or log4j.xml into your a location on the classpath (usually the same as the jar files).
Optionall...
How to have multiple CSS transitions on an element?
... answered Jun 15 '12 at 22:17
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How to print number with commas as thousands separators?
I am trying to print an integer in Python 2.6.1 with commas as thousands separators. For example, I want to show the number 1234567 as 1,234,567 . How would I go about doing this? I have seen many examples on Google, but I am looking for the simplest practical way.
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how to use python to execute a curl command
I want to execute a curl command in python.
7 Answers
7
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How do I read image data from a URL in Python?
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In Python3 the StringIO and cStringIO modules are gone.
In Python3 you should use:
from PIL import Image
import requests
from io import BytesIO
response = requests.get(url)
img = Image.open(BytesIO(response.content))
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Python csv string to array
...is way you must be aware of quoting, so using csv module is preferred.
On Python 2 you have to import StringIO as
from StringIO import StringIO
instead.
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Difference between subprocess.Popen and os.system
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If you check out the subprocess section of the Python docs, you'll notice there is an example of how to replace os.system() with subprocess.Popen():
sts = os.system("mycmd" + " myarg")
...does the same thing as...
sts = Popen("mycmd" + " myarg", shell=True).wait()
T...
What is the purpose of class methods?
I'm teaching myself Python and my most recent lesson was that Python is not Java , and so I've just spent a while turning all my Class methods into functions.
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Random hash in Python
What is the easiest way to generate a random hash (MD5) in Python?
9 Answers
9
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Quick and easy file dialog in Python?
...root = tk.Tk()
root.withdraw()
file_path = filedialog.askopenfilename()
Python 2 variant:
import Tkinter, tkFileDialog
root = Tkinter.Tk()
root.withdraw()
file_path = tkFileDialog.askopenfilename()
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