脚本内容：

    import matplotlib.pyplot as plt

#

nginx_file = '10.6.11.91_access.log-2018-12-27'

ip = {}

#筛选nginx日志文件中的IP

with open(nginx_file) as f:

	for i in f.readlines():

		s = i.strip().split()[0]

		lengh = len(ip.keys())

		#统计每个IP的访问以字典存储

		if s in ip.keys():

			ip[s] = ip[s] + 1

		else:

			ip[s] = 1

#以IP出现的次数排序返回对象为list

ip = sorted(ip.items(), key=lambda e:e[1], reverse=True)

#取列表前十

newip = ip[0:10:1]

tu = dict(newip)

x = []

y = []

for k in tu:

	x.append(k)

	y.append(tu[k])

plt.title('ip access')

plt.xlabel('ip address')

plt.ylabel('pv')

#X 轴项的翻转角度

plt.xticks(rotation=70)

#显示每个柱状图的值

for a,b in zip(x,y):

	plt.text(a, b, '%.0f' % b, ha='center', va= 'bottom',fontsize=7)

plt.bar(x,y)

plt.legend()

plt.show()

效果：