How do pipes in Python work?

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Pipes are nothing but two ended ,in daily life also we come across pipes . In programming or in operating system context, One end is basically used to read and other end for writing. Python Syntax:- r, w = os.pipe() # Pipe Created for Read and Write os.close(w) #close write before reading it r...
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Pipes are nothing but two ended ,in daily life also we come across pipes . In programming or in operating system context, One end is basically used to read and other end for writing. Python Syntax:- r, w = os.pipe() # Pipe Created for Read and Write os.close(w) #close write before reading it r = os.fdopen(r) print "reading" str = r.read() os.close(r) #close reading before writing w = os.fdopen(w, 'w') #open Writing end print "writing" w.write("Text written..") w.close() read less
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Can anyone help me with the below programs: A) which returns orger summary as a list with 2- tuples. Each tuple consists of the order number and the product of the price per items and the quantity. OUTPUT: [ ('34587',163.8),('98762',284.0),('77226',98.85),('88112',74.97) ]. 10 INR should be increased in the product if the value of the order is smaller than 100.00 INR. OUTPUT: [ ('34587',163.8),('98762',284.0),(77226',108.85),('88112',84.97) ]
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