- clear all the variables in Sypder
import sys sys.modules[__name__].__dict__.clear() - Some tips (python notebook)
#shift + enter to run lines #triple quotes for multi-line string #underscore denotes result from last operation !ls #see what's in dir range? #check info about "range" something. #press Tab to see options x,y = y,x #easy swap, multipal assign bool(-1) #see Boolean data type str(13) #Matlab num2str(13) equivalent print(type(True)) #see the data type, will return bool x=range(4) #return [0,1,2,3] - Keep in mind that in
Python2:
5/2=2; 5/2.0=2.5;Python3:5/2=2.5; - Getting input from user
faren = float(input("enter a temperature (in F): ")) print "Temperature in C is " + str((faren - 32) / 1.8)faren = float(input("enter a temperature (in F): ")) print "Temperature in C is " + str((faren - 32) / 1.8) - The indexing
http://nbviewer.ipython.org/gist/anonymous/96fa78e3280c5ada1269
- The data structures
http://nbviewer.ipython.org/gist/hydro-tian/70491b27495b90c4aa48
- Magic line
%timeit #timing one line %%timeit #timing the whole cell %%bash #turn whole cell to bash, same as ruby,html,etc. %%file text.py #put in the 1st line, will save and overwrite the content in the cell to this file %debug #debug mode %matplotlib inline # put plots in the cell %lsmagic #list other available magic lines - Matplotlib 101
http://nbviewer.ipython.org/gist/hydro-tian/7df6738e7afa778ad5e6