Something about Python study. 1.Recursive_Fibonacci.py--Two different way to acheive Fibonacci. Recursive is much slower.--Written in Python2. 2.test_0.py--Same as Recursive_Fibonacci.py. 3.tesst_1.py--A simple example of how to use easygui. 4.test_3.py--A simple example of collections in Python.--Written in Python2. 5.test_4.py--List all the ips between an ip range.--Written in Python2. 5.test_5_tk0.py--A simple example of TKinter. 6.test_6_filename.py--I don't know what's that mean. May be I was drunked. Don't try this code at home. 7.test_7_movefile.py--Move files to the parent folder. 8.test_8_readline.pu--A bad way of reading file. 9.test_9_tk1.py--Another example of TKinter which draws some shapes. 10.test_10_tk2.py--Another example of TKinter. 11.test_11_neural0.py--Neural Network??? Drunked again. 12.test_12_GoldETF.py--Using LinearRegression to predit price of Gold. NOT FINACIAL ADVICE. 13.test_13_GLD.py--Moving Average. 14.test_14_matplotlib.py--A example of matplotlib. 15.test_15_axes3d.py--A example of Axes3D. 16.test_16_countfiles.py--A way to count how many different kind of files(.mp3, .txt, .rar ......) in one dir.--Written in Python2. 17.test_17_noquote.py--Delete lines without a quote in one file and save it in another file. 18.test_18_userpass.txt--Given a path, move all the user:password txt to a specified dir. You know what's that mean.--Python2. 19.test_19_mvsemicolon.py--Move files which start line with a semicolon in a dir. 20.test_20_mergexlsx.py--Merge all .xlsx files in the current dir into Merge.csv.--Python3 Thanks.