retext 是一個使用 markdown 文法和 restructuredtext (rest) 結構的文本編輯器，編輯的内容支援導出到 pdf、odt 和 html 以及純文字，支援即時預覽、網頁生成以及 html 文法高亮、全屏模式等。
1.下載下傳并安裝python.
安裝我就不說了，我是安裝到e:\python34
2.下載下傳并安裝pyqt5,下載下傳位址：
http://www.riverbankcomputing.co.uk/software/pyqt/download5
請根據自己作業系統位數選擇下載下傳：
下載下傳完成後輕按兩下安裝
3.設定環境變量
變量名：pythonpath
變量值：e:\python34\lib\;e:\python34\lib\site-packages\
變量值請根據自己實際的安裝路徑适當修改，你懂的哈。
同理繼續添加qt_qpa_platform_plugin_path系統變量
變量名：qt_qpa_platform_plugin_path
變量值：e:\python34\lib\site-packages\pyqt5\plugins\platforms
然後選中path系統環境變量，然後點“編輯”，在變量值最前面添加上：
e:\python34;e:\python34\lib\site-packages\pyqt5;
4.下載下傳并安裝easy_install工具
首先下載下傳ez_setup.py,你可以自己根據檔案名去google，也可以根據我提供的檔案内容自己建立
#!/usr/bin/env python
"""
setuptools bootstrapping installer.
run this script to install or upgrade setuptools.
"""
import os
import shutil
import sys
import tempfile
import zipfile
import optparse
import subprocess
import platform
import textwrap
import contextlib
import warnings
from distutils import log
try:
from urllib.request import urlopen
except importerror:
from urllib2 import urlopen
from site import user_site
user_site = none
default_version = "15.0"
default_url = "https://pypi.python.org/packages/source/s/setuptools/"
default_save_dir = os.curdir
def _python_cmd(*args):
"""
execute a command.
return true if the command succeeded.
"""
args = (sys.executable,) + args
return subprocess.call(args) == 0
def _install(archive_filename, install_args=()):
"""install setuptools."""
with archive_context(archive_filename):
# installing
log.warn('installing setuptools')
if not _python_cmd('setup.py', 'install', *install_args):
log.warn('something went wrong during the installation.')
log.warn('see the error message above.')
# exitcode will be 2
return 2
def _build_egg(egg, archive_filename, to_dir):
"""build setuptools egg."""
# building an egg
log.warn('building a setuptools egg in %s', to_dir)
_python_cmd('setup.py', '-q', 'bdist_egg', '--dist-dir', to_dir)
# returning the result
log.warn(egg)
if not os.path.exists(egg):
raise ioerror('could not build the egg.')
class contextualzipfile(zipfile.zipfile):
"""supplement zipfile class to support context manager for python 2.6."""
def __enter__(self):
return self
def __exit__(self, type, value, traceback):
self.close()
def __new__(cls, *args, **kwargs):
"""construct a zipfile or contextualzipfile as appropriate."""
if hasattr(zipfile.zipfile, '__exit__'):
return zipfile.zipfile(*args, **kwargs)
return super(contextualzipfile, cls).__new__(cls)
@contextlib.contextmanager
def archive_context(filename):
unzip filename to a temporary directory, set to the cwd.
the unzipped target is cleaned up after.
tmpdir = tempfile.mkdtemp()
log.warn('extracting in %s', tmpdir)
old_wd = os.getcwd()
try:
os.chdir(tmpdir)
with contextualzipfile(filename) as archive:
archive.extractall()
# going in the directory
subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0])
os.chdir(subdir)
log.warn('now working in %s', subdir)
yield
finally:
os.chdir(old_wd)
shutil.rmtree(tmpdir)
def _do_download(version, download_base, to_dir, download_delay):
"""download setuptools."""
egg = os.path.join(to_dir, 'setuptools-%s-py%d.%d.egg'
% (version, sys.version_info[0], sys.version_info[1]))
archive = download_setuptools(version, download_base,
to_dir, download_delay)
_build_egg(egg, archive, to_dir)
sys.path.insert(0, egg)
# remove previously-imported pkg_resources if present (see
# https://bitbucket.org/pypa/setuptools/pull-request/7/ for details).
if 'pkg_resources' in sys.modules:
del sys.modules['pkg_resources']
import setuptools
setuptools.bootstrap_install_from = egg
def use_setuptools(
version=default_version, download_base=default_url,
to_dir=default_save_dir, download_delay=15):
ensure that a setuptools version is installed.
return none. raise systemexit if the requested version
or later cannot be installed.
to_dir = os.path.abspath(to_dir)
# prior to importing, capture the module state for
# representative modules.
rep_modules = 'pkg_resources', 'setuptools'
imported = set(sys.modules).intersection(rep_modules)
import pkg_resources
pkg_resources.require("setuptools>=" + version)
# a suitable version is already installed
return
except importerror:
# pkg_resources not available; setuptools is not installed; download
pass
except pkg_resources.distributionnotfound:
# no version of setuptools was found; allow download
except pkg_resources.versionconflict as vc_err:
if imported:
_conflict_bail(vc_err, version)
# otherwise, unload pkg_resources to allow the downloaded version to
# take precedence.
del pkg_resources
_unload_pkg_resources()
return _do_download(version, download_base, to_dir, download_delay)
def _conflict_bail(vc_err, version):
setuptools was imported prior to invocation, so it is
unsafe to unload it. bail out.
conflict_tmpl = textwrap.dedent("""
the required version of setuptools (>={version}) is not available,
and can't be installed while this script is running. please
install a more recent version first, using
'easy_install -u setuptools'.
(currently using {vc_err.args[0]!r})
""")
msg = conflict_tmpl.format(**locals())
sys.stderr.write(msg)
sys.exit(2)
def _unload_pkg_resources():
del_modules = [
name for name in sys.modules
if name.startswith('pkg_resources')
]
for mod_name in del_modules:
del sys.modules[mod_name]
def _clean_check(cmd, target):
run the command to download target.
if the command fails, clean up before re-raising the error.
subprocess.check_call(cmd)
except subprocess.calledprocesserror:
if os.access(target, os.f_ok):
os.unlink(target)
raise
def download_file_powershell(url, target):
download the file at url to target using powershell.
powershell will validate trust.
raise an exception if the command cannot complete.
target = os.path.abspath(target)
ps_cmd = (
"[system.net.webrequest]::defaultwebproxy.credentials = "
"[system.net.credentialcache]::defaultcredentials; "
"(new-object system.net.webclient).downloadfile(%(url)r, %(target)r)"
% vars()
)
cmd = [
'powershell',
'-command',
ps_cmd,
_clean_check(cmd, target)
def has_powershell():
"""determine if powershell is available."""
if platform.system() != 'windows':
return false
cmd = ['powershell', '-command', 'echo test']
with open(os.path.devnull, 'wb') as devnull:
try:
subprocess.check_call(cmd, stdout=devnull, stderr=devnull)
except exception:
return false
return true
download_file_powershell.viable = has_powershell
def download_file_curl(url, target):
cmd = ['curl', url, '--silent', '--output', target]
def has_curl():
cmd = ['curl', '--version']
download_file_curl.viable = has_curl
def download_file_wget(url, target):
cmd = ['wget', url, '--quiet', '--output-document', target]
def has_wget():
cmd = ['wget', '--version']
download_file_wget.viable = has_wget
def download_file_insecure(url, target):
"""use python to download the file, without connection authentication."""
src = urlopen(url)
# read all the data in one block.
data = src.read()
src.close()
# write all the data in one block to avoid creating a partial file.
with open(target, "wb") as dst:
dst.write(data)
download_file_insecure.viable = lambda: true
def get_best_downloader():
downloaders = (
download_file_powershell,
download_file_curl,
download_file_wget,
download_file_insecure,
viable_downloaders = (dl for dl in downloaders if dl.viable())
return next(viable_downloaders, none)
def download_setuptools(
to_dir=default_save_dir, delay=15,
downloader_factory=get_best_downloader):
download setuptools from a specified location and return its filename.
`version` should be a valid setuptools version number that is available
as an sdist for download under the `download_base` url (which should end
with a '/'). `to_dir` is the directory where the egg will be downloaded.
`delay` is the number of seconds to pause before an actual download
attempt.
``downloader_factory`` should be a function taking no arguments and
returning a function for downloading a url to a target.
# making sure we use the absolute path
zip_name = "setuptools-%s.zip" % version
url = download_base + zip_name
saveto = os.path.join(to_dir, zip_name)
if not os.path.exists(saveto): # avoid repeated downloads
log.warn("downloading %s", url)
downloader = downloader_factory()
downloader(url, saveto)
return os.path.realpath(saveto)
def _build_install_args(options):
build the arguments to 'python setup.py install' on the setuptools package.
returns list of command line arguments.
return ['--user'] if options.user_install else []
def _parse_args():
"""parse the command line for options."""
parser = optparse.optionparser()
parser.add_option(
'--user', dest='user_install', action='store_true', default=false,
help='install in user site package (requires python 2.6 or later)')
'--download-base', dest='download_base', metavar="url",
default=default_url,
help='alternative url from where to download the setuptools package')
'--insecure', dest='downloader_factory', action='store_const',
const=lambda: download_file_insecure, default=get_best_downloader,
help='use internal, non-validating downloader'
'--version', help="specify which version to download",
default=default_version,
'--to-dir',
help="directory to save (and re-use) package",
default=default_save_dir,
options, args = parser.parse_args()
# positional arguments are ignored
return options
def _download_args(options):
"""return args for download_setuptools function from cmdline args."""
return dict(
version=options.version,
download_base=options.download_base,
downloader_factory=options.downloader_factory,
to_dir=options.to_dir,
def main():
"""install or upgrade setuptools and easyinstall."""
options = _parse_args()
archive = download_setuptools(**_download_args(options))
return _install(archive, _build_install_args(options))
if __name__ == '__main__':
sys.exit(main())
輕按兩下ez_setup.py開始安裝easy_install.
5.cmd打開指令行視窗,切換到e:\python34\scripts目錄下，依次順序執行如下指令：
pip install pygments
pip install markdown
pip install docutils
pip install markups
6.下載下傳并解壓retext
解壓retext到任意盤符，然後解壓圖示檔案壓縮包，把得到的所有圖示檔案copy到retext的icons檔案夾下：如圖
我的retext是解壓到e盤，這樣retext就可以使用了，
當然為了友善起見，你也可以把retext.py檔案發送到桌面快捷方式。
為了實作把retext放入u盤，實作便攜式安裝。
然後在u盤根目錄下建立一個retext.bat批處理檔案：
rem retext startup batch file
rem -------------------------
rem determine drive letter of batchfile
for /f "delims=\" %%d in ('cd') do set curdrv=%%d
echo %curdrv%
rem set envs using current drive letter if envs not set for usb sticks
rem rem them out if you have the envs set
set pythonpath=%curdrv%\python34\lib;%curdrv%\python34\lib\site-packages
set path=%curdrv%\python34;%curdrv%\python34\lib\site-packages\pyqt5\bin;%path%
rem start retext
start /b %curdrv%\python34\pythonw.exe %cd%\retext.py
以後隻要輕按兩下retext.bat檔案即可打開retext.
retext主界面如圖：
是不是覺得so beautiful?如果你也有同感，就跟我一起玩玩它吧！其實哥可不是什麼外貌協會，retext吸引我的是它支援md導出為html檔案和pdf檔案，這是一大亮點，對于我來說。
ok,夜深了已是00：20，打完收工睡覺覺！！！
轉載：http://iamyida.iteye.com/blog/2200121