chirag-v

try:
    f = open('/home/user/acetylene.xyz')
    while True:
        line = f.readline()
    if len(line) == 0:
       break
    print(line, end=' ')
finally:
    f.close()
print('file is closed now!')

chirag-v

with open('/home/user/acetylene.xyz','r') as a_file:
    print(a_file.read())
    
    if a_file.closed is True:
        print("You won't see this")

if a_file.closed is True:
    print ("file is closed now!")

chirag-v

import shutil

with open('/home/user/acetylene.xyz','r') as fsrc:
    with open('/home/user/acetylene-copy.xyz','w') as fdst:
        shutil.copyfileobj(fsrc, fdst)

chirag-v

0 1
C         -1.20326        2.85220        0.25234
H         -0.37439        3.51897        0.03795
C         -1.82835        2.05722       -0.84623
O         -1.62242        2.75455        1.39418
H         -1.31730        2.27626       -1.80702
H         -2.90224        2.32334       -0.93775
H         -1.73531        0.97336       -0.62482

chirag-v

0 1
C  
H       1        1.08515
C       1        1.49318     2      120.10198
O       1        1.22026     2      119.76319     3      180.02562
H       3        1.11007     1      109.81648     2      359.97438
H       3        1.11015     1      109.75404     2      240.10815
H       3        1.11015     1      109.75404     2      119.89178

chirag-v

;; Use [Delete] key to delete selected characters
(global-set-key [delete] 'delete-char)

chirag-v

;; Convert "yes or no" prompts to "y or n" instead 
(fset 'yes-or-no-p 'y-or-n-p)

;; [Home] & [End] key will take you to beginning & end of line
(global-set-key [home] 'beginning-of-line) 
(global-set-key [end] 'end-of-line) 

;; displays the time in the status bar
(display-time) 

chirag-v

import shutil

shutil.copy('/home/user/acetylene.xyz', '/home/user/backup/')

##  if you want to preserve the meta-data of acetylene.txt
##  then you should use shutil.copy2() 

chirag-v

#!/usr/bin/python
#Show how to make and save a simple line plot with labels, title and grid
#modified from matplotlib official tutorial @ http://www.scipy.org/Plotting_Tutorial
#Run directly on iPython shell

import numpy
import pylab

pylab.interactive(True)
pylab.show()

chirag-v

import math as m

x=float('nan')
m.isnan(x) # True