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python Programming Glossary: f.readlinePython random lines from subfolders http://stackoverflow.com/questions/12128948/python-random-lines-from-subfolders with open 'C Tasks file.txt' as f lines random.sample f.readlines 10 print lines python python 3.x random sample share improve.. file_index with open path as f while curr_line index task f.readline curr_line 1 print task tasks.remove index Note that you only..
Does, With open() not works with python 2.6 http://stackoverflow.com/questions/12138298/does-with-open-not-works-with-python-2-6 information. with open ' tmp test a.txt' as f ... print f.readline ... foo You are trying to use the with statement with multiple..
http://stackoverflow.com/questions/13613336/python-concatenate-text-files open each file by f open ... read line by line by calling f.readline and write each line into that new file. It doesn't seem very..
http://stackoverflow.com/questions/14145082/file-tell-inconsistency index for tell Input f open 'test.txt' 'r' while True line f.readline if line '' break print f.tell f.tell Output f.tell 103 f.tell.. at the price of some performance loss for line in iter f.readline '' print f.tell This uses the iter function sentinel argument..
Character reading from file in Python http://stackoverflow.com/questions/147741/character-reading-from-file-in-python ' f.write u' u4500 blah blah blah n' f.seek 0 print repr f.readline 1 f.close EDIT I'm assuming that your intended goal is just..
Python file.tell() giving strange numbers? http://stackoverflow.com/questions/15934950/python-file-tell-giving-strange-numbers I get a very strange result f open test.txt while True a f.readline print .format repr a f.tell if a break The result 'hello n'.. no problems with tell f open test.txt rb while True a f.readline print .format repr a f.tell if a b break The result b'hello..
How do I read two lines from a file at a time using python http://stackoverflow.com/questions/1657299/how-do-i-read-two-lines-from-a-file-at-a-time-using-python like f open filename r for line in f line1 line line2 f.readline f.close But this breaks saying that ValueError Mixing iteration.. so you need to use one or the other. while True line1 f.readline line2 f.readline if not line2 break # EOF ... share improve..
Reading utf-8 characters from a gzip file in python http://stackoverflow.com/questions/1883604/reading-utf-8-characters-from-a-gzip-file-in-python gzip import codecs f gzip.open 'file.gz' 'r' engines line f.readline while line parsed string.split line u' u0001' #do some things..... parsed string.split line u' u0001' #do some things... line f.readline for en in engines print en python file io utf 8 gzip share..
reading csv files in scipy/numpy in Python http://stackoverflow.com/questions/2859404/reading-csv-files-in-scipy-numpy-in-python 'r' skipped_rows for n in range skiprows header_line f.readline .strip if raw_header skipped_rows.append header_line else skipped_rows.append..
Using python “with” statement with try-except block http://stackoverflow.com/questions/3642080/using-python-with-statement-with-try-except-block with a try except block try with open file r as f line f.readline except IOError whatever If it is then considering the old way.. the old way of doing things try f open file r line f.readline except IOError whatever finally f.close Is the primary benefit.. old style code would be try f open file r try line f.readline finally f.close except IOError whatever As you can see the with..
How to read numbers from file in Python? http://stackoverflow.com/questions/6583573/how-to-read-numbers-from-file-in-python whitespace with open 'file' as f w h int x for x in f.readline .split # read first line array for line in f # read rest of.. comprehension with open 'file' as f w h int x for x in f.readline .split array int x for x in line.split for line in f share..
How I can I lazily read multiple JSON objects from a file/stream in Python? http://stackoverflow.com/questions/6886283/how-i-can-i-lazily-read-multiple-json-objects-from-a-file-stream-in-python each object on a separate line and using json.loads f.readline but I would really prefer not to need to do this. Example Use..
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