"Cute Python" reading notes (vii)

no best, only more reasonable!

Use the default list printing format to store and report the fact that it is not a very well, thinking about modifying the changes, so:

# -*- coding: utf-8 -*-import osdef cdwalker (Cdrom, cdcfile):     export =  ""     for root, dirs, files in  Os.walk (CDROM):         print (Formatcdinfo (root, dirs, files) )         export += formatcdinfo (Root, dirs, files)     open (cdcfile,  ' W '). Write (export)     def formatcdinfo ( root, dirs, files):    export =  "\ n"  + root +  "\ n"     for d in dirs:        export  +=  "-d %s %s \n"  %  (root, d)     for f  in files:        export +=  "-f %s %s \n"  %  (ROOT, F)     export +=  "=" *70    return exportcdwalker (' E:\ \iso\\centos-6.8-x86_64-bin-dvd1 ', ' NEWCD.CDC ')

Run Result:

E:\iso\centos-6.8-x86_64-bin-dvd1-d e:\iso\centos-6.8-x86_64-bin-dvd1 efi -d e:\iso\ centos-6.8-x86_64-bin-dvd1 images -d e:\iso\centos-6.8-x86_64-bin-dvd1 isolinux -d  e:\iso\centos-6.8-x86_64-bin-dvd1 [boot] -f e:\iso\centos-6.8-x86_64-bin-dvd1 . discinfo -f e:\iso\centos-6.8-x86_64-bin-dvd1 .treeinfo -f e:\iso\centos-6.8-x86_64- Bin-dvd1 centos_buildtag -f e:\iso\centos-6.8-x86_64-bin-dvd1 eula -f e:\iso\ centos-6.8-x86_64-bin-dvd1 gpl -f e:\iso\centos-6.8-x86_64-bin-dvd1  Release-notes-en-us.html -f e:\iso\centos-6.8-x86_64-bin-dvd1 rpm-gpg-key-centos-6 -f  e:\iso\centos-6.8-x86_64-bin-dvd1 rpm-gpg-key-centos-debug-6 -f e:\iso\centos-6.8-x86_64- bin-dvd1 rpm-gpg-key-centos-security-6 -f e:\iso\centos-6.8-x86_64-bin-dvd1  Rpm-gpg-key-centos-testing-6 -f e:\iso\centos-6.8-x86_64-biN-dvd1 trans. tbl ======================================================================e:\iso\centos-6.8-x86_64- bin-dvd1\efi-d e:\iso\centos-6.8-x86_64-bin-dvd1\efi boot -f e:\iso\centos-6.8-x86_64- Bin-dvd1\efi trans. tbl ======================================================================e:\iso\centos-6.8-x86_64- Bin-dvd1\efi\boot-f e:\iso\centos-6.8-x86_64-bin-dvd1\efi\boot bootx64.conf -f e:\iso\ Centos-6.8-x86_64-bin-dvd1\efi\boot bootx64.efi -f e:\iso\centos-6.8-x86_64-bin-dvd1\efi\boot  splash.xpm.gz -f e:\iso\centos-6.8-x86_64-bin-dvd1\efi\boot trans. tbl ======================================================================e:\iso\centos-6.8-x86_64- Bin-dvd1\images-d e:\iso\centos-6.8-x86_64-bin-dvd1\images pxeboot -f e:\iso\ centos-6.8-x86_64-bin-dvd1\images efiboot.img -f e:\iso\centos-6.8-x86_64-bin-dvd1\images  Efidisk.img -f e:\iso\centos-6.8-x86_64-bin-dvd1\images install.img -f e:\iso\centos-6.8-x86_64-bin-dvd1\images  TRANS. tbl ======================================================================e:\iso\centos-6.8-x86_64- Bin-dvd1\images\pxeboot-f e:\iso\centos-6.8-x86_64-bin-dvd1\images\pxeboot initrd.img -f e : \iso\centos-6.8-x86_64-bin-dvd1\images\pxeboot trans. tbl -f e:\iso\centos-6.8-x86_64-bin-dvd1\images\pxeboot vmlinuz ========================== ============================================e:\iso\centos-6.8-x86_64-bin-dvd1\isolinux-f e:\iso\ Centos-6.8-x86_64-bin-dvd1\isolinux boot.cat -f e:\iso\centos-6.8-x86_64-bin-dvd1\isolinux  boot.msg -f e:\iso\centos-6.8-x86_64-bin-dvd1\isolinux grub.conf -f e:\iso\ Centos-6.8-x86_64-bin-dvd1\isolinux initrd.img -f e:\iso\centos-6.8-x86_64-bin-dvd1\isolinux  isolinux.bin -f e:\iso\centos-6.8-x86_64-bin-dvd1\isolinux isOlinux.cfg -f e:\iso\centos-6.8-x86_64-bin-dvd1\isolinux memtest -f e:\iso\ Centos-6.8-x86_64-bin-dvd1\isolinux splash.jpg -f e:\iso\centos-6.8-x86_64-bin-dvd1\isolinux  trans. Tbl -f e:\iso\centos-6.8-x86_64-bin-dvd1\isolinux vesamenu.c32 -f e:\iso\ centos-6.8-x86_64-bin-dvd1\isolinux vmlinuz ======================================================== ==============e:\iso\centos-6.8-x86_64-bin-dvd1\[boot]-f e:\iso\centos-6.8-x86_64-bin-dvd1\[boot] 1- boot-noemul.img -f e:\iso\centos-6.8-x86_64-bin-dvd1\[boot] 2-boot-noemul.img ============ ==========================================================

where d represents the directory; F represents the file.

Although it is a freely designed format, small white can realize the following benefits:

1. Natural format, can be directly manual inspection;

2. Each row contains the directory and file name of the object type (directory or file);

3. The search matches the output line is the natural line, and contains the necessary information;

The summary text of the record can be upgraded again, referring to the standard. ini configuration file format, where changes are unavoidable, then there are 2 questions:

1. How to handle. ini Files

2. How to get the file size

Prompt early adopters under the guidance of a person:

>>> from Configparser import rawconfigparser as rcp>>> CFG=RCP () >>> cfg.add_section (' Info ') >>> cfg.set ("info", "ImagePath", "PATH/TO/MY/CD") >>> cfg.set ("info", "foo", "CD") >>> Cfg.write (Open ("Try.ini", "w"))

View File Try.ini

[Info]imagepath = Path/to/my/cdfoo = CD

>>> Import os>>> os.stat ("Try.ini") Os.stat_result (st_mode=33206, st_ino=844424930848802, st_dev= 1492519019, St_nlink=1, St_uid=0, St_gid=0, st_size=47, st_atime=1521902211, st_mtime=1521902211, st_ctime=1521902211 ) >>> Os.stat ("Try.ini"). St_size47

Bingo! It's over!

The basic configuration processor module is used to organize the information generated by the original Os.walk () into the text of the class INI.

# -*- coding: utf-8 -*-import osfrom configparser import  Rawconfigparser as rcpdef inicdinfo (cdrom, cdcfile):     walker =  {}    for root, dirs, files in os.walk (CDROM):         walker[root] =  (dirs, files)              #  root directory is a dictionary key, corresponding subdirectory plus file as value    cfg =  RCP ()     cfg.add_section ("Info")     cfg.add_section ("Comment")     cfg.set ("info",  "ImagePath",  cdrom)     cfg.set ("info",   "Volume",  cdcfile)     dirs = walker.keys ()     i  = 0    for d in dirs:         i += 1        cfg.set ("Comment",  str (i),  d)     for p  in walker:        cfg.add_section (P)          for f in walker[p][1]:             cfg.set (P, f, os.stat ("%s/%s"  %  (p, f)). St_size)      cfg.write (Open (cdcfile,  "w")) Inicdinfo (' e:\\iso\\centos-6.8-x86_64-bin-dvd1 ', ' Newcd.ini ')

View the contents of the Newcd.ini file:

[info]imagepath = e:\iso\centos-6.8-x86_64-bin-dvd1volume = newcd.cdc[comment]1 =  e:\iso\centos-6.8-x86_64-bin-dvd12 = e:\iso\centos-6.8-x86_64-bin-dvd1\efi3 = e:\iso \centos-6.8-x86_64-bin-dvd1\efi\boot4 = e:\iso\centos-6.8-x86_64-bin-dvd1\images5 = e:\iso \centos-6.8-x86_64-bin-dvd1\images\pxeboot6 = e:\iso\centos-6.8-x86_64-bin-dvd1\isolinux7 =  e:\iso\centos-6.8-x86_64-bin-dvd1\[boot][e:\iso\centos-6.8-x86_64-bin-dvd1].discinfo = 31. treeinfo = 338centos_buildtag = 14eula = 212gpl =  18009release-notes-en-us.html = 1359rpm-gpg-key-centos-6 = 1706rpm-gpg-key-centos-debug-6  = 1730rpm-gpg-key-centos-security-6 = 1730rpm-gpg-key-centos-testing-6 =  1734trans.tbl = 3380[e:\iso\centos-6.8-x86_64-bin-dvd1\efi]trans.tbl = 216[e:\iso\ Centos-6.8-x86_64-bin-dvd1\efi\boot]bootx64.conf =&nBsp;398bootx64.efi = 254279splash.xpm.gz = 1341trans.tbl = 672[e:\iso\ Centos-6.8-x86_64-bin-dvd1\images]efiboot.img = 380928efidisk.img = 45373440install.img  = 146313216trans.tbl = 888[e:\iso\centos-6.8-x86_64-bin-dvd1\images\pxeboot]initrd.img  = 40688737trans.tbl = 441vmlinuz = 4264528[e:\iso\centos-6.8-x86_64-bin-dvd1\ isolinux]boot.cat = 2048boot.msg = 84grub.conf = 321initrd.img =  40688737isolinux.bin = 24576isolinux.cfg = 923memtest = 183012splash.jpg =  151230trans.tbl = 2215vesamenu.c32 = 163728vmlinuz = 4264528[e:\iso\ centos-6.8-x86_64-bin-dvd1\[boot]]1-boot-noemul.img = 20482-boot-noemul.img = 380928

The [INFO] section is the overall information for the software and the CD; [Comment] section is the root directory list; [directory] sections are file information for each directory

Summary: Through spontaneous introspection, comparing the merits and demerits of the data structure, continuous improvement, the selection of the most easily understood and cross-platform common data format, the usual reminder and use the built-in module Configparser to organize and interpret the data text.

"Cute Python" reading notes (vii)