The risk with this code is that if you already have a result. Robert Caspary Robert Caspary 1, 9 9 silver badges 7 7 bronze badges. It is also possible to combine files by incorporating OS commands. Example: import os import subprocess subprocess. Knak 3 3 silver badges 14 14 bronze badges. Sadheesh Sadheesh 6 6 silver badges 6 6 bronze badges.
This is not portable approach. This is the answer that worked for me! Celeo 5, 8 8 gold badges 38 38 silver badges 40 40 bronze badges. That's it! Be aware in the third method, when you combine a lot of audio files in one go, you may encounter some delay on export method. That's normal, but if you want it to be quicker, make sure you don't join your audio files in a single run. By the way, MoviePy was designed to handle videos and not audio, I advise you to use the 3rd method for concatenating audio, and MoviePy to concatenate video , check this tutorial for more information and for the code.
Get the full code of this tutorial here. Making two different methods to extract frames from videos with the timestamp with OpenCV or MoviePy libraries in Python. Learn how to add a static photo to an audio file to form a video file using MoviePy library in Python. SreeramTP Thank you. But is there a way where I do not have to write the header of the columns since the actual file I am working on has 10 columns for each csv and specifying the column names in the end can be tedious.
Show 2 more comments. Active Oldest Votes. Improve this answer. Add a comment. You can try pd. Marcus Cazzola Marcus Cazzola 42 5 5 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Novice C 1, 2 2 gold badges 11 11 silver badges 27 27 bronze badges. Lattyware: I think most people who learn about fileinput are told that it's a way to turn a simple sys. Or they do learn, but then forget—I keep re-discovering it every year or two… — abarnert.
As you yourself pointed out, line-based solutions don't read one character at a time; they read in chunks and pull lines out of a buffer. It is indeed a very bad choice because it isn't a power of 2 and it is ridiculously a little size. Example code not quite valid for Python 2. Show 5 more comments. I don't know about elegance, but this works: import glob import os for f in glob. Daniel Daniel 1 1 silver badge 1 1 bronze badge.
This is insecure; also, cat can take a list of files, so no need to repeatedly call it. You can easily make it safe by calling subprocess. What's wrong with UNIX commands? If it can insert filename as well that would be great.
Deqing To specify input file names, you can use cat file1. Show 1 more comment. Clint Chelak 87 9 9 bronze badges. Check out the. Alex Kawrykow Alex Kawrykow 95 1 1 gold badge 1 1 silver badge 3 3 bronze badges. This will produce a giant string, which, depending on the size of the files, could be larger than the available memory. As Python provides easy lazy access to files, it's a bad idea. If the files are not gigantic: with open 'newfile. Lattyware Because I'm quite sure the execution is faster.
By the way, in fact, even when the code orders to read a file line by line, the file is read by chunks, that are put in cache in which each line is then read one after the other. The better procedure would be to put the length of read chunk equal to the size of the cache.
But I don't know how to determine this cache's size. That's the implementation in CPython, but none of that is guaranteed. Optimizing like that is a bad idea as while it may be effective on some systems, it may not on others.
Yes, of course line-by-line reading is buffered. That's exactly why it's not that much slower.
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