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POWhat is the best way to sort a sequence in Python?
 

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  1. POWhat is the best way to sort a sequence in Python?
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    <p>I am trying to sort the table based on certain conditions that need to happen in a row. Simplified version of a table:</p> <pre><code>Number Time 1 23 2 45 3 67 4 23 5 11 6 45 7 123 8 34 </code></pre> <p>...</p> <p>I need to check if time was &lt;40 5 times in a row. Like I need to check rows 1-5, then 2-6 etc... And then print and save to a file the first and last time. Like, if the condition is met for rows 2-6 I will need to print time for Number 2 and Number 6. The checking should stop after condition has been met. No need to check other rows. I implemented a counter with two temp variables to check for 3 items in a row so far. It works fine. But, if I want to check for the condition that happened 30 times in a row, I can not just create 30 temp variables manually. What is the best way to achieve that? I guess I will just need some kind of a loop. Thanks!</p> <p>Here is part of my code:</p> <pre><code>reader = csv.reader(open(filename)) counter, temp1, temp2, numrow = 0, 0, 0, 0 for row in reader: numrow+=1 if numrow &lt;5: col0, col1, col4, col5, col6, col23, col24, col25 = float(row[0]), float(row[1]), float(row[4]), float(row[5]),float(row[6]), float(row[23]), float(row[24]), float(row[25]) if col1 &lt;= 40: list1=(col1, col3, col4, col5, col6, col23, col24, col25) counter += 1 if counter == 3: print("Cell# %s" %filename[-10:-5]) print LAYOUT.format(*headers_short) print LAYOUT.format(*temp1) print LAYOUT.format(*temp2) print LAYOUT.format(*list1) print "" elif counter == 1: temp1=list1 elif counter == 2: temp2=list1 else: counter = 0 </code></pre> <p>I implemented solution suggested by Bakuriu and it seems to be working. But what will be the best way to combine numerous testing? Like I need to check for several conditions. Lets say: v</p> <ul> <li>efficiency for less than 40 in 10 cycles in a row, </li> <li>capacity for less than 40 in 5 cycles in row </li> <li>time for less than 40 for 25 cycles in a row</li> <li>and some others...</li> </ul> <p>Right now I just open csv.reader for every testing and run the function. I guess it is not the most efficient way, although it works. Sorry, I am just a complete noob.</p> <pre><code>csvfiles = glob.glob('processed_data/*.stat') for filename in csvfiles: flag=[] flag.append(filename[-12:-5]) reader = csv.reader(open(filename)) for a, row_group in enumerate(row_grouper(reader,10)): if all(float(row[1]) &lt; 40 for row in row_group): str1= "Efficiency is less than 40 in cycles "+ str(a+1)+'-'+str(a+10) #i is the index of the first row in the group. flag.append(str1) break #stop processing other rows. reader = csv.reader(open(filename)) for b, row_group in enumerate(row_grouper(reader,5)): if all(float(row[3]) &lt; 40 for row in row_group): str1= "Capacity is less than 40 minutes in cycles "+ str(a+1)+'-'+str(a+5) flag.append(str1) break #stop processing other rows. reader = csv.reader(open(filename)) for b, row_group in enumerate(row_grouper(reader,25)): if all(float(row[3]) &lt; 40 for row in row_group): str1= "Time is less than &lt; 40 in cycles "+ str(a+1)+'-'+str(a+25) flag.append(str1) break #stop processing other rows. if len(flag)&gt;1: for i in flag: print i print '\n' </code></pre>
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    1. COThat's an unconventional meaning of 'sort' you have there...
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