# Hanning at Numpy | python

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Hanning Window — it is a weighted cosine cone.

`  Syntax:  numpy.hamming (M)  Parameters:   M:  Number of points in the output window.  Returns:  AN array `

Window with maximum value normalized to one (value one appears only if M is odd).

Code # 1 :

 ` import ` ` numpy as np ` ` print ` ` (np.hanning (` ` 12 ` `)) `

Exit:

` [0. 0.07937323 0.29229249 0.57115742 0.82743037 0.97974649 0.97974649 0.82743037 0.57115742 0.29229249 0.07937323 0.] `

Code # 2: Plotting a window plot and its frequency response (requires SciPy and matplot p>

 ` import ` ` numpy as np ` ` import ` ` matplotlib.pyplot as plt ` ` from ` ` numpy.fft ` ` import ` ` fft, fftshift ` ` window ` ` = ` ` np.hanning (` ` 51 ` `) ` ` plt.plot (window) ` ` plt.title (` ` "Hann window" ` `) ` ` plt.ylabel (` `" Amplitude & amp; quot "` `) ` ` plt.xlabel (` ` "Sample" ` `) ` ` plt.show () `

Output:

For frequency:

 ` import ` ` numpy as np ` ` import ` ` matplotlib.pyplot as plt ` ` from ` ` numpy.fft ` ` import ` ` fft, fftshift ` ` window ` ` = ` ` np.hanning (` ` 51 ` `) ` ` plt.figure () ` ` A ` ` = ` ` fft (window, ` ` 2048 ` `) ` ` / ` ` 25.5 ` ` mag ` ` = ` ` np. ` ` abs ` ` (fftshift (A)) ` ` freq ` ` = ` ` np.linspace (` ` - ` ` 0.5 ` `, ` ` 0.5 ` `, ` ` len ` ` (A)) ` ` response ` ` = ` ` 20 ` ` * ` ` np.log10 (mag) ` ` response ` ` = ` ` np.clip (response, ` ` - ` ` 100 ` `, ` ` 100 ` `) ` ` plt.plot (freq, response) ` ` plt.title (` ` "Frequency response of Hanning window" ` `) ` ` plt.ylabel (` ` "Magnitude [dB]" ` `) ` ` plt.xlabel (` ` "Normalized frequency [cycles per sample]" ` `) ` ` plt.axis (` ` "tight" ` `) ` ` plt.show () `

Output:

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## Hanning at Numpy | python clip: Questions

How do I copy a string to the clipboard?

By Dancrew32

I"m trying to make a basic Windows application that builds a string out of user input and then adds it to the clipboard. How do I copy a string to the clipboard using Python?

215

Actually, `pywin32` and `ctypes` seem to be an overkill for this simple task. `Tkinter` is a cross-platform GUI framework, which ships with Python by default and has clipboard accessing methods along with other cool stuff.

If all you need is to put some text to system clipboard, this will do it:

``````from Tkinter import Tk
r = Tk()
r.withdraw()
r.clipboard_clear()
r.clipboard_append("i can has clipboardz?")
r.update() # now it stays on the clipboard after the window is closed
r.destroy()
``````

And that"s all, no need to mess around with platform-specific third-party libraries.

If you are using Python 3, replace `TKinter` with `tkinter`.

## Hanning at Numpy | python clip: Questions

Python script to copy text to clipboard

I just need a python script that copies text to the clipboard.

After the script gets executed i need the output of the text to be pasted to another source. Is it possible to write a python script that does this job?

194

See Pyperclip. Example (taken from Pyperclip site):

``````import pyperclip
pyperclip.copy("The text to be copied to the clipboard.")
spam = pyperclip.paste()
``````

Also, see Xerox. But it appears to have more dependencies.

How do I install pip on macOS or OS X?

I spent most of the day yesterday searching for a clear answer for installing `pip` (package manager for Python). I can"t find a good solution.

How do I install it?

1672

UPDATE (Jan 2019):

`easy_install` has been deprecated. Please use `get-pip.py` instead.

``````easy_install pip
``````

If you need admin privileges to run this, try:

``````sudo easy_install pip
``````

1672

‚ö°Ô∏è TL;DR ‚Äî One line solution.

All you have to do is:

``````sudo easy_install pip
``````

2019: ‚ö†Ô∏è`easy_install` has been deprecated. Check Method #2 below for preferred installation!

Details:

‚ö°Ô∏è OK, I read the solutions given above, but here"s an EASY solution to install `pip`.

MacOS comes with `Python` installed. But to make sure that you have `Python` installed open the terminal and run the following command.

``````python --version
``````

If this command returns a version number that means `Python` exists. Which also means that you already have access to `easy_install` considering you are using `macOS/OSX`.

‚ÑπÔ∏è Now, all you have to do is run the following command.

``````sudo easy_install pip
``````

After that, `pip` will be installed and you"ll be able to use it for installing other packages.

Let me know if you have any problems installing `pip` this way.

Cheers!

P.S. I ended up blogging a post about it. QuickTip: How Do I Install pip on macOS or OS X?

‚úÖ UPDATE (Jan 2019): METHOD #2: Two line solution ‚Äî

`easy_install` has been deprecated. Please use `get-pip.py` instead.

First of all download the `get-pip` file

``````curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
``````

Now run this file to install `pip`

``````python get-pip.py
``````

That should do it.

Another gif you said? Here ya go!

1672

You can install it through Homebrew on OS X. Why would you install Python with Homebrew?

The version of Python that ships with OS X is great for learning but it‚Äôs not good for development. The version shipped with OS X may be out of date from the official current Python release, which is considered the stable production version. (source)

Homebrew is something of a package manager for OS X. Find more details on the Homebrew page. Once Homebrew is installed, run the following to install the latest Python, Pip & Setuptools:

``````brew install python
``````

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