我推荐使用tqdm - https://pypi.python.org/pypi/tqdm -它可以简单地将任何可迭代对象或进程转换为进度条，并处理所需终端的所有混乱。

从文档中可以看到:“tqdm可以很容易地支持回调/钩子和手动更新。这里有一个urllib的例子。”

import urllib
from tqdm import tqdm

def my_hook(t):
  """
  Wraps tqdm instance. Don't forget to close() or __exit__()
  the tqdm instance once you're done with it (easiest using `with` syntax).

  Example
  -------

  >>> with tqdm(...) as t:
  ...     reporthook = my_hook(t)
  ...     urllib.urlretrieve(..., reporthook=reporthook)

  """
  last_b = [0]

  def inner(b=1, bsize=1, tsize=None):
    """
    b  : int, optional
        Number of blocks just transferred [default: 1].
    bsize  : int, optional
        Size of each block (in tqdm units) [default: 1].
    tsize  : int, optional
        Total size (in tqdm units). If [default: None] remains unchanged.
    """
    if tsize is not None:
        t.total = tsize
    t.update((b - last_b[0]) * bsize)
    last_b[0] = b
  return inner

eg_link = 'http://www.doc.ic.ac.uk/~cod11/matryoshka.zip'
with tqdm(unit='B', unit_scale=True, miniters=1,
          desc=eg_link.split('/')[-1]) as t:  # all optional kwargs
    urllib.urlretrieve(eg_link, filename='/dev/null',
                       reporthook=my_hook(t), data=None)

在Python命令行运行这个命令(不是在任何IDE或开发环境中):

>>> import threading
>>> for i in range(50+1):
...   threading._sleep(0.5)
...   print "\r%3d" % i, ('='*i)+('-'*(50-i)),

在我的Windows系统上运行良好。

好吧，这里是工作的代码，我在发布之前测试了它:

import sys
def prg(prog, fillchar, emptchar):
    fillt = 0
    emptt = 20
    if prog < 100 and prog > 0:
        prog2 = prog/5
        fillt = fillt + prog2
        emptt = emptt - prog2
        sys.stdout.write("\r[" + str(fillchar)*fillt + str(emptchar)*emptt + "]" + str(prog) + "%")
        sys.stdout.flush()
    elif prog >= 100:
        prog = 100
        prog2 = prog/5
        fillt = fillt + prog2
        emptt = emptt - prog2
        sys.stdout.write("\r[" + str(fillchar)*fillt + str(emptchar)*emptt + "]" + str(prog) + "%" + "\nDone!")
        sys.stdout.flush()
    elif prog < 0:
        prog = 0
        prog2 = prog/5
        fillt = fillt + prog2
        emptt = emptt - prog2
        sys.stdout.write("\r[" + str(fillchar)*fillt + str(emptchar)*emptt + "]" + str(prog) + "%" + "\nHalted!")
        sys.stdout.flush()

优点:

20个字符条(每5个字符对应1个字符) 自定义填充字符 自定义空字符 暂停(任何低于0的数字) 完成(100及100以上的任何数字) 进度计数(0-100(以下和以上用于特殊功能)) 条形图旁边的百分数，这是一条单线

缺点:

仅支持整数(但可以通过将除法改为整数除法来支持整数，因此只需将prog2 = prog/5更改为prog2 = int(prog/5))

http://code.activestate.com/recipes/168639-progress-bar-class/ (2002) http://code.activestate.com/recipes/299207-console-text-progress-indicator-class/ (2004) http://pypi.python.org/pypi/progressbar (2006)

还有很多教程等着你去谷歌。

我正在使用来自reddit的进度。我喜欢它，因为它可以在一行中打印每一项的进度，而且它不应该从程序中删除打印输出。

编辑:固定链接

我写了一个简单的进度条:

def bar(total, current, length=10, prefix="", filler="#", space=" ", oncomp="", border="[]", suffix=""):
    if len(border) != 2:
        print("parameter 'border' must include exactly 2 symbols!")
        return None

    print(prefix + border[0] + (filler * int(current / total * length) +
                                      (space * (length - int(current / total * length)))) + border[1], suffix, "\r", end="")
    if total == current:
        if oncomp:
            print(prefix + border[0] + space * int(((length - len(oncomp)) / 2)) +
                  oncomp + space * int(((length - len(oncomp)) / 2)) + border[1], suffix)
        if not oncomp:
            print(prefix + border[0] + (filler * int(current / total * length) +
                                        (space * (length - int(current / total * length)))) + border[1], suffix)

正如你所看到的，它有:条的长度，前缀和后缀，填充，空间，文本在条上100%(oncomp)和边界

这里有一个例子:

from time import sleep, time
start_time = time()
for i in range(10):
    pref = str((i+1) * 10) + "% "
    complete_text = "done in %s sec" % str(round(time() - start_time))
    sleep(1)
    bar(10, i + 1, length=20, prefix=pref, oncomp=complete_text)

正在进行中:

30% [######              ]

Out on complete:

100% [   done in 9 sec   ]