Split text file into smaller ones by bytes in python










0















I have a problem with splitting a large text file into smaller files by the size (in bytes)
e.g. text file has 30kB, I want to split it into multiple files with 5kB each.



I search a lot but I found almost ways split the file by lines.



any suggestions?










share|improve this question


























    0















    I have a problem with splitting a large text file into smaller files by the size (in bytes)
    e.g. text file has 30kB, I want to split it into multiple files with 5kB each.



    I search a lot but I found almost ways split the file by lines.



    any suggestions?










    share|improve this question
























      0












      0








      0








      I have a problem with splitting a large text file into smaller files by the size (in bytes)
      e.g. text file has 30kB, I want to split it into multiple files with 5kB each.



      I search a lot but I found almost ways split the file by lines.



      any suggestions?










      share|improve this question














      I have a problem with splitting a large text file into smaller files by the size (in bytes)
      e.g. text file has 30kB, I want to split it into multiple files with 5kB each.



      I search a lot but I found almost ways split the file by lines.



      any suggestions?







      python-3.x text






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 14 '18 at 6:19









      Nujud AliNujud Ali

      406




      406






















          1 Answer
          1






          active

          oldest

          votes


















          1














          If you are looking into splitting it into files of uniform size (e.g. 5KB each), then one solution would be:



          1. Read the large file as binary

          2. For every 5000 bytes (5KB), create a new file

          3. Write those 5000 bytes into the new file

          Sample code:



          i = 0
          with open("large-file", "r", encoding="utf8") as in_file:
          bytes = in_file.read(5000) # read 5000 bytes
          while bytes:
          with open("out-file-" + str(i), 'w', encoding="utf8") as output:
          output.write(bytes)
          bytes = in_file.read(5000) # read another 5000 bytes
          i += 1





          share|improve this answer

























          • thanks for your answer, but it doesn't work fine with Unicode texts.

            – Nujud Ali
            Nov 14 '18 at 7:52











          • may I ask in what way does it not working? is it the reading or the writing part?

            – Andreas
            Nov 14 '18 at 7:53











          • in writing part, when I read segmented files, it views unreadable characters.

            – Nujud Ali
            Nov 14 '18 at 7:57











          • can you paste some of the characters here? it might be an issue with the encoding

            – Andreas
            Nov 14 '18 at 8:03











          • ط§ظ„ط¥ط¹ظ„ط§ظ† ظ…ط¤ط®ط±ظ‹ط§طŒ ط¹ظ† ظ†ظٹط© ط§ظ„ط¯ط®ظˆظ„ ظپظٹ ط§ط³طھط«ظ…ط§ط± ظ…ط´طھط±ظƒ ظپظٹ ظ…طµظپط§ط© ظƒط¨ظٹط±ط© ط§ظ„ط­ط¬ظ… ط¨ط§ظ„ط³ط§ط­ظ„ ط§ظ„ط؛ط±ط¨ظٹ ظ„ظ„ظ‡ظ†ط¯". ظˆظ‚ط§ظ„ ط§ظ„ظ…ظ‡ظ†ط¯ط³ ط§ظ„ظ†ط§طµط± ط¥ظ† "ط£ط±ط§ظ…ظƒظˆ ط§ظ„ط³ط¹ظˆط¯ظٹط© طھطھظˆط³ط¹ ظپظٹ ط£ط¹ظ…

            – Nujud Ali
            Nov 14 '18 at 9:38










          Your Answer






          StackExchange.ifUsing("editor", function ()
          StackExchange.using("externalEditor", function ()
          StackExchange.using("snippets", function ()
          StackExchange.snippets.init();
          );
          );
          , "code-snippets");

          StackExchange.ready(function()
          var channelOptions =
          tags: "".split(" "),
          id: "1"
          ;
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function()
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled)
          StackExchange.using("snippets", function()
          createEditor();
          );

          else
          createEditor();

          );

          function createEditor()
          StackExchange.prepareEditor(
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader:
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          ,
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          );



          );













          draft saved

          draft discarded


















          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53294188%2fsplit-text-file-into-smaller-ones-by-bytes-in-python%23new-answer', 'question_page');

          );

          Post as a guest















          Required, but never shown

























          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          1














          If you are looking into splitting it into files of uniform size (e.g. 5KB each), then one solution would be:



          1. Read the large file as binary

          2. For every 5000 bytes (5KB), create a new file

          3. Write those 5000 bytes into the new file

          Sample code:



          i = 0
          with open("large-file", "r", encoding="utf8") as in_file:
          bytes = in_file.read(5000) # read 5000 bytes
          while bytes:
          with open("out-file-" + str(i), 'w', encoding="utf8") as output:
          output.write(bytes)
          bytes = in_file.read(5000) # read another 5000 bytes
          i += 1





          share|improve this answer

























          • thanks for your answer, but it doesn't work fine with Unicode texts.

            – Nujud Ali
            Nov 14 '18 at 7:52











          • may I ask in what way does it not working? is it the reading or the writing part?

            – Andreas
            Nov 14 '18 at 7:53











          • in writing part, when I read segmented files, it views unreadable characters.

            – Nujud Ali
            Nov 14 '18 at 7:57











          • can you paste some of the characters here? it might be an issue with the encoding

            – Andreas
            Nov 14 '18 at 8:03











          • ط§ظ„ط¥ط¹ظ„ط§ظ† ظ…ط¤ط®ط±ظ‹ط§طŒ ط¹ظ† ظ†ظٹط© ط§ظ„ط¯ط®ظˆظ„ ظپظٹ ط§ط³طھط«ظ…ط§ط± ظ…ط´طھط±ظƒ ظپظٹ ظ…طµظپط§ط© ظƒط¨ظٹط±ط© ط§ظ„ط­ط¬ظ… ط¨ط§ظ„ط³ط§ط­ظ„ ط§ظ„ط؛ط±ط¨ظٹ ظ„ظ„ظ‡ظ†ط¯". ظˆظ‚ط§ظ„ ط§ظ„ظ…ظ‡ظ†ط¯ط³ ط§ظ„ظ†ط§طµط± ط¥ظ† "ط£ط±ط§ظ…ظƒظˆ ط§ظ„ط³ط¹ظˆط¯ظٹط© طھطھظˆط³ط¹ ظپظٹ ط£ط¹ظ…

            – Nujud Ali
            Nov 14 '18 at 9:38















          1














          If you are looking into splitting it into files of uniform size (e.g. 5KB each), then one solution would be:



          1. Read the large file as binary

          2. For every 5000 bytes (5KB), create a new file

          3. Write those 5000 bytes into the new file

          Sample code:



          i = 0
          with open("large-file", "r", encoding="utf8") as in_file:
          bytes = in_file.read(5000) # read 5000 bytes
          while bytes:
          with open("out-file-" + str(i), 'w', encoding="utf8") as output:
          output.write(bytes)
          bytes = in_file.read(5000) # read another 5000 bytes
          i += 1





          share|improve this answer

























          • thanks for your answer, but it doesn't work fine with Unicode texts.

            – Nujud Ali
            Nov 14 '18 at 7:52











          • may I ask in what way does it not working? is it the reading or the writing part?

            – Andreas
            Nov 14 '18 at 7:53











          • in writing part, when I read segmented files, it views unreadable characters.

            – Nujud Ali
            Nov 14 '18 at 7:57











          • can you paste some of the characters here? it might be an issue with the encoding

            – Andreas
            Nov 14 '18 at 8:03











          • ط§ظ„ط¥ط¹ظ„ط§ظ† ظ…ط¤ط®ط±ظ‹ط§طŒ ط¹ظ† ظ†ظٹط© ط§ظ„ط¯ط®ظˆظ„ ظپظٹ ط§ط³طھط«ظ…ط§ط± ظ…ط´طھط±ظƒ ظپظٹ ظ…طµظپط§ط© ظƒط¨ظٹط±ط© ط§ظ„ط­ط¬ظ… ط¨ط§ظ„ط³ط§ط­ظ„ ط§ظ„ط؛ط±ط¨ظٹ ظ„ظ„ظ‡ظ†ط¯". ظˆظ‚ط§ظ„ ط§ظ„ظ…ظ‡ظ†ط¯ط³ ط§ظ„ظ†ط§طµط± ط¥ظ† "ط£ط±ط§ظ…ظƒظˆ ط§ظ„ط³ط¹ظˆط¯ظٹط© طھطھظˆط³ط¹ ظپظٹ ط£ط¹ظ…

            – Nujud Ali
            Nov 14 '18 at 9:38













          1












          1








          1







          If you are looking into splitting it into files of uniform size (e.g. 5KB each), then one solution would be:



          1. Read the large file as binary

          2. For every 5000 bytes (5KB), create a new file

          3. Write those 5000 bytes into the new file

          Sample code:



          i = 0
          with open("large-file", "r", encoding="utf8") as in_file:
          bytes = in_file.read(5000) # read 5000 bytes
          while bytes:
          with open("out-file-" + str(i), 'w', encoding="utf8") as output:
          output.write(bytes)
          bytes = in_file.read(5000) # read another 5000 bytes
          i += 1





          share|improve this answer















          If you are looking into splitting it into files of uniform size (e.g. 5KB each), then one solution would be:



          1. Read the large file as binary

          2. For every 5000 bytes (5KB), create a new file

          3. Write those 5000 bytes into the new file

          Sample code:



          i = 0
          with open("large-file", "r", encoding="utf8") as in_file:
          bytes = in_file.read(5000) # read 5000 bytes
          while bytes:
          with open("out-file-" + str(i), 'w', encoding="utf8") as output:
          output.write(bytes)
          bytes = in_file.read(5000) # read another 5000 bytes
          i += 1






          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Nov 15 '18 at 1:06

























          answered Nov 14 '18 at 6:34









          AndreasAndreas

          1,90931018




          1,90931018












          • thanks for your answer, but it doesn't work fine with Unicode texts.

            – Nujud Ali
            Nov 14 '18 at 7:52











          • may I ask in what way does it not working? is it the reading or the writing part?

            – Andreas
            Nov 14 '18 at 7:53











          • in writing part, when I read segmented files, it views unreadable characters.

            – Nujud Ali
            Nov 14 '18 at 7:57











          • can you paste some of the characters here? it might be an issue with the encoding

            – Andreas
            Nov 14 '18 at 8:03











          • ط§ظ„ط¥ط¹ظ„ط§ظ† ظ…ط¤ط®ط±ظ‹ط§طŒ ط¹ظ† ظ†ظٹط© ط§ظ„ط¯ط®ظˆظ„ ظپظٹ ط§ط³طھط«ظ…ط§ط± ظ…ط´طھط±ظƒ ظپظٹ ظ…طµظپط§ط© ظƒط¨ظٹط±ط© ط§ظ„ط­ط¬ظ… ط¨ط§ظ„ط³ط§ط­ظ„ ط§ظ„ط؛ط±ط¨ظٹ ظ„ظ„ظ‡ظ†ط¯". ظˆظ‚ط§ظ„ ط§ظ„ظ…ظ‡ظ†ط¯ط³ ط§ظ„ظ†ط§طµط± ط¥ظ† "ط£ط±ط§ظ…ظƒظˆ ط§ظ„ط³ط¹ظˆط¯ظٹط© طھطھظˆط³ط¹ ظپظٹ ط£ط¹ظ…

            – Nujud Ali
            Nov 14 '18 at 9:38

















          • thanks for your answer, but it doesn't work fine with Unicode texts.

            – Nujud Ali
            Nov 14 '18 at 7:52











          • may I ask in what way does it not working? is it the reading or the writing part?

            – Andreas
            Nov 14 '18 at 7:53











          • in writing part, when I read segmented files, it views unreadable characters.

            – Nujud Ali
            Nov 14 '18 at 7:57











          • can you paste some of the characters here? it might be an issue with the encoding

            – Andreas
            Nov 14 '18 at 8:03











          • ط§ظ„ط¥ط¹ظ„ط§ظ† ظ…ط¤ط®ط±ظ‹ط§طŒ ط¹ظ† ظ†ظٹط© ط§ظ„ط¯ط®ظˆظ„ ظپظٹ ط§ط³طھط«ظ…ط§ط± ظ…ط´طھط±ظƒ ظپظٹ ظ…طµظپط§ط© ظƒط¨ظٹط±ط© ط§ظ„ط­ط¬ظ… ط¨ط§ظ„ط³ط§ط­ظ„ ط§ظ„ط؛ط±ط¨ظٹ ظ„ظ„ظ‡ظ†ط¯". ظˆظ‚ط§ظ„ ط§ظ„ظ…ظ‡ظ†ط¯ط³ ط§ظ„ظ†ط§طµط± ط¥ظ† "ط£ط±ط§ظ…ظƒظˆ ط§ظ„ط³ط¹ظˆط¯ظٹط© طھطھظˆط³ط¹ ظپظٹ ط£ط¹ظ…

            – Nujud Ali
            Nov 14 '18 at 9:38
















          thanks for your answer, but it doesn't work fine with Unicode texts.

          – Nujud Ali
          Nov 14 '18 at 7:52





          thanks for your answer, but it doesn't work fine with Unicode texts.

          – Nujud Ali
          Nov 14 '18 at 7:52













          may I ask in what way does it not working? is it the reading or the writing part?

          – Andreas
          Nov 14 '18 at 7:53





          may I ask in what way does it not working? is it the reading or the writing part?

          – Andreas
          Nov 14 '18 at 7:53













          in writing part, when I read segmented files, it views unreadable characters.

          – Nujud Ali
          Nov 14 '18 at 7:57





          in writing part, when I read segmented files, it views unreadable characters.

          – Nujud Ali
          Nov 14 '18 at 7:57













          can you paste some of the characters here? it might be an issue with the encoding

          – Andreas
          Nov 14 '18 at 8:03





          can you paste some of the characters here? it might be an issue with the encoding

          – Andreas
          Nov 14 '18 at 8:03













          ط§ظ„ط¥ط¹ظ„ط§ظ† ظ…ط¤ط®ط±ظ‹ط§طŒ ط¹ظ† ظ†ظٹط© ط§ظ„ط¯ط®ظˆظ„ ظپظٹ ط§ط³طھط«ظ…ط§ط± ظ…ط´طھط±ظƒ ظپظٹ ظ…طµظپط§ط© ظƒط¨ظٹط±ط© ط§ظ„ط­ط¬ظ… ط¨ط§ظ„ط³ط§ط­ظ„ ط§ظ„ط؛ط±ط¨ظٹ ظ„ظ„ظ‡ظ†ط¯". ظˆظ‚ط§ظ„ ط§ظ„ظ…ظ‡ظ†ط¯ط³ ط§ظ„ظ†ط§طµط± ط¥ظ† "ط£ط±ط§ظ…ظƒظˆ ط§ظ„ط³ط¹ظˆط¯ظٹط© طھطھظˆط³ط¹ ظپظٹ ط£ط¹ظ…

          – Nujud Ali
          Nov 14 '18 at 9:38





          ط§ظ„ط¥ط¹ظ„ط§ظ† ظ…ط¤ط®ط±ظ‹ط§طŒ ط¹ظ† ظ†ظٹط© ط§ظ„ط¯ط®ظˆظ„ ظپظٹ ط§ط³طھط«ظ…ط§ط± ظ…ط´طھط±ظƒ ظپظٹ ظ…طµظپط§ط© ظƒط¨ظٹط±ط© ط§ظ„ط­ط¬ظ… ط¨ط§ظ„ط³ط§ط­ظ„ ط§ظ„ط؛ط±ط¨ظٹ ظ„ظ„ظ‡ظ†ط¯". ظˆظ‚ط§ظ„ ط§ظ„ظ…ظ‡ظ†ط¯ط³ ط§ظ„ظ†ط§طµط± ط¥ظ† "ط£ط±ط§ظ…ظƒظˆ ط§ظ„ط³ط¹ظˆط¯ظٹط© طھطھظˆط³ط¹ ظپظٹ ط£ط¹ظ…

          – Nujud Ali
          Nov 14 '18 at 9:38



















          draft saved

          draft discarded
















































          Thanks for contributing an answer to Stack Overflow!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid


          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.

          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53294188%2fsplit-text-file-into-smaller-ones-by-bytes-in-python%23new-answer', 'question_page');

          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          這個網誌中的熱門文章

          How to read a connectionString WITH PROVIDER in .NET Core?

          In R, how to develop a multiplot heatmap.2 figure showing key labels successfully

          Museum of Modern and Contemporary Art of Trento and Rovereto