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python Programming Glossary: finHow to Filter from CSV file using Python Script http://stackoverflow.com/questions/10530301/how-to-filter-from-csv-file-using-python-script name to be the same you should use some temporary name and finally rename file. Otherwise you have to read file to memory at.. import csv with open 'infile' 'r' open 'outfile' 'w' as fin fout writer csv.writer fout delimiter ' ' for row in csv.reader.. csv.writer fout delimiter ' ' for row in csv.reader fin delimiter ' ' if row 2 'Central' writer.writerow row share..
reading integers from binary file in python http://stackoverflow.com/questions/1163459/reading-integers-from-binary-file-in-python bmp firm. Next 4 bytes are the file size. When I excecute fin open hi.bmp rb firm fin.read 2 file_size int fin.read 4 I get.. are the file size. When I excecute fin open hi.bmp rb firm fin.read 2 file_size int fin.read 4 I get ValueError invalid literal.. excecute fin open hi.bmp rb firm fin.read 2 file_size int fin.read 4 I get ValueError invalid literal for int with base 10..
http://stackoverflow.com/questions/2101426/parsing-a-stdout-in-python python share improve this question One old way is fin fout os.popen4 wget version grep Wget print fout.read The other..
Importing a CSV file into a sqlite3 database table using Python http://stackoverflow.com/questions/2887878/importing-a-csv-file-into-a-sqlite3-database-table-using-python CREATE TABLE t col1 col2 with open 'data.csv' 'rb' as fin # `with` statement available in 2.5 # csv.DictReader uses first.. in file for column headings by default dr csv.DictReader fin # comma is default delimiter to_db i 'col1' i 'col2' for i in..
writing header in csv python with DictWriter http://stackoverflow.com/questions/2982023/writing-header-in-csv-python-with-dictwriter __future__ import with_statement with open infile 'rb' as fin dr csv.DictReader fin delimiter ' t' # dr.fieldnames contains.. with open infile 'rb' as fin dr csv.DictReader fin delimiter ' t' # dr.fieldnames contains values from first row..
How to write PIL image filter for plain pgm format? http://stackoverflow.com/questions/4270700/how-to-write-pil-image-filter-for-plain-pgm-format doc pgm.html or below. Alternative solution is that I find other well documented ascii grayscale format that is supported.. a PBM into a numpy array. Only supports ASCII PBM for now. fin None debug True try fin open filename 'r' while True header.. Only supports ASCII PBM for now. fin None debug True try fin open filename 'r' while True header fin.readline .strip if header.startswith..
Python: Deleting specific strings from file http://stackoverflow.com/questions/7356043/python-deleting-specific-strings-from-file lastname1 firstname2 lastname2 .... firstnamen lastnamen fin open infile fout open outfile w for line in fin for word in.. lastnamen fin open infile fout open outfile w for line in fin for word in delete_list line line.replace word fout.write line.. word in delete_list line line.replace word fout.write line fin.close fout.close When I execute the file I get the following..
http://stackoverflow.com/questions/744256/reading-huge-file-in-python pointer to iterate through the list of keys for line in fin line map int line.split while line 0 list pointer .key list.. key None while key search and left right mid left right 2 fin.seek mid width key value map int fin.readline .split if search.. mid left right 2 fin.seek mid width key value map int fin.readline .split if search key left mid 1 else right mid 1 if..
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