共计 14227 个字符，预计需要花费 36 分钟才能阅读完成。
绪论
本期是对腾讯热播剧——雪中悍刀行的一次爬虫与数据分析，耗时一个小时，总爬取条数 1W 条评论，很适宜新人练手，值得注意的一点是评论的情绪文本剖析解决，这是第一次接触的常识。
爬虫方面：因为腾讯的评论数据是封装在 json 外面，所以只须要找到 json 文件，对须要的数据进行提取保留即可。
- 视频网址：https://v.qq.com/x/cover/mzc0…
- 评论 json 数据网址：https://video.coral.qq.com/va…
- 注：只有替换视频数字 id 的值，即可爬取其余视频的评论
如何查找视频 id？
我的项目构造：
一. 爬虫局部：
1. 爬取评论内容代码：spiders.py
import requests
import re
import random
def get_html(url, params):
uapools = ['Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36',
'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:30.0) Gecko/20100101 Firefox/30.0',
'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.75.14 (KHTML, like Gecko) Version/7.0.3 Safari/537.75.14'
]
thisua = random.choice(uapools)
headers = {"User-Agent": thisua}
r = requests.get(url, headers=headers, params=params)
r.raise_for_status()
r.encoding = r.apparent_encoding
r.encoding = 'utf-8'# 不加此句呈现乱码
return r.text
def parse_page(infolist, data):
commentpat = '"content":"(.*?)"'
lastpat = '"last":"(.*?)"'
commentall = re.compile(commentpat, re.S).findall(data)
next_cid = re.compile(lastpat).findall(data)[0]
infolist.append(commentall)
return next_cid
def print_comment_list(infolist):
j = 0
for page in infolist:
print('第' + str(j + 1) + '页 \n')
commentall = page
for i in range(0, len(commentall)):
print(commentall[i] + '\n')
j += 1
def save_to_txt(infolist, path):
fw = open(path, 'w+', encoding='utf-8')
j = 0
for page in infolist:
#fw.write('第' + str(j + 1) + '页 \n')
commentall = page
for i in range(0, len(commentall)):
fw.write(commentall[i] + '\n')
j += 1
fw.close()
def main():
infolist = []
vid = '7579013546';
cid = "0";
page_num = 3000
url = 'https://video.coral.qq.com/varticle/' + vid + '/comment/v2'
#print(url)
for i in range(page_num):
params = {'orinum': '10', 'cursor': cid}
html = get_html(url, params)
cid = parse_page(infolist, html)
print_comment_list(infolist)
save_to_txt(infolist, 'content.txt')
main()2. 爬取评论工夫代码：sp.py
import requests
import re
import random
def get_html(url, params):
uapools = ['Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36',
'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:30.0) Gecko/20100101 Firefox/30.0',
'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.75.14 (KHTML, like Gecko) Version/7.0.3 Safari/537.75.14'
]
thisua = random.choice(uapools)
headers = {"User-Agent": thisua}
r = requests.get(url, headers=headers, params=params)
r.raise_for_status()
r.encoding = r.apparent_encoding
r.encoding = 'utf-8'# 不加此句呈现乱码
return r.text
def parse_page(infolist, data):
commentpat = '"time":"(.*?)"'
lastpat = '"last":"(.*?)"'
commentall = re.compile(commentpat, re.S).findall(data)
next_cid = re.compile(lastpat).findall(data)[0]
infolist.append(commentall)
return next_cid
def print_comment_list(infolist):
j = 0
for page in infolist:
print('第' + str(j + 1) + '页 \n')
commentall = page
for i in range(0, len(commentall)):
print(commentall[i] + '\n')
j += 1
def save_to_txt(infolist, path):
fw = open(path, 'w+', encoding='utf-8')
j = 0
for page in infolist:
#fw.write('第' + str(j + 1) + '页 \n')
commentall = page
for i in range(0, len(commentall)):
fw.write(commentall[i] + '\n')
j += 1
fw.close()
def main():
infolist = []
vid = '7579013546';
cid = "0";
page_num =3000
url = 'https://video.coral.qq.com/varticle/' + vid + '/comment/v2'
#print(url)
for i in range(page_num):
params = {'orinum': '10', 'cursor': cid}
html = get_html(url, params)
cid = parse_page(infolist, html)
print_comment_list(infolist)
save_to_txt(infolist, 'time.txt')
main()二. 数据处理局部
1. 评论的工夫戳转换为失常工夫 time.py
# coding=gbk
import csv
import time
csvFile = open("data.csv",'w',newline='',encoding='utf-8')
writer = csv.writer(csvFile)
csvRow = []
#print(csvRow)
f = open("time.txt",'r',encoding='utf-8')
for line in f:
csvRow = int(line)
#print(csvRow)
timeArray = time.localtime(csvRow)
csvRow = time.strftime("%Y-%m-%d %H:%M:%S", timeArray)
print(csvRow)
csvRow = csvRow.split()
writer.writerow(csvRow)
f.close()
csvFile.close()2. 评论内容读入 csv CD.py
# coding=gbk
import csv
csvFile = open("content.csv",'w',newline='',encoding='utf-8')
writer = csv.writer(csvFile)
csvRow = []
f = open("content.txt",'r',encoding='utf-8')
for line in f:
csvRow = line.split()
writer.writerow(csvRow)
f.close()
csvFile.close()3. 统计一天各个时间段内的评论数 py.py
# coding=gbk
import csv
from pyecharts import options as opts
from sympy.combinatorics import Subset
from wordcloud import WordCloud
with open('../Spiders/data.csv') as csvfile:
reader = csv.reader(csvfile)
data1 = [str(row[1])[0:2] for row in reader]
print(data1)
print(type(data1))
#先变成汇合失去 seq 中的所有元素，防止反复遍历
set_seq = set(data1)
rst = []
for item in set_seq:
rst.append((item,data1.count(item))) #增加元素及呈现个数
rst.sort()
print(type(rst))
print(rst)
with open("time2.csv", "w+", newline='', encoding='utf-8') as f:
writer = csv.writer(f, delimiter=',')
for i in rst: # 对于每一行的，将这一行的每个元素别离写在对应的列中
writer.writerow(i)
with open('time2.csv') as csvfile:
reader = csv.reader(csvfile)
x = [str(row[0]) for row in reader]
print(x)
with open('time2.csv') as csvfile:
reader = csv.reader(csvfile)
y1 = [float(row[1]) for row in reader]
print(y1)4. 统计最近评论数 py1.py
# coding=gbk
import csv
from pyecharts import options as opts
from sympy.combinatorics import Subset
from wordcloud import WordCloud
with open('../Spiders/data.csv') as csvfile:
reader = csv.reader(csvfile)
data1 = [str(row[0]) for row in reader]
#print(data1)
print(type(data1))
#先变成汇合失去 seq 中的所有元素，防止反复遍历
set_seq = set(data1)
rst = []
for item in set_seq:
rst.append((item,data1.count(item))) #增加元素及呈现个数
rst.sort()
print(type(rst))
print(rst)
with open("time1.csv", "w+", newline='', encoding='utf-8') as f:
writer = csv.writer(f, delimiter=',')
for i in rst: # 对于每一行的，将这一行的每个元素别离写在对应的列中
writer.writerow(i)
with open('time1.csv') as csvfile:
reader = csv.reader(csvfile)
x = [str(row[0]) for row in reader]
print(x)
with open('time1.csv') as csvfile:
reader = csv.reader(csvfile)
y1 = [float(row[1]) for row in reader]
print(y1)三. 数据分析
数据分析方面：波及到了词云图，条形，折线，饼图，后三者是对评论工夫与主演占比的剖析，然而腾讯的评论工夫是以工夫戳的模式显示，所以要进行转换，再去统计呈现次数，最初，新加了对评论内容的情感剖析。
1. 制作词云图
wc.py
import numpy as np
import re
import jieba
from wordcloud import WordCloud
from matplotlib import pyplot as plt
from PIL import Image
# 下面的包本人装置，不会的就百度
f = open('content.txt', 'r', encoding='utf-8') # 这是数据源，也就是想生成词云的数据
txt = f.read() # 读取文件
f.close() # 敞开文件，其实用 with 就好，然而懒得改了
# 如果是文章的话，须要用到 jieba 分词，分完之后也能够本人解决下再生成词云
newtxt = re.sub("[A-Za-z0-9!%[],\。]", "", txt)
print(newtxt)
words = jieba.lcut(newtxt)
img = Image.open(r'wc.jpg') # 想要搞得形态
img_array = np.array(img)
# 相干配置，外面这个 collocations 配置能够防止反复
wordcloud = WordCloud(
background_color="white",
width=1080,
height=960,
font_path="../ 文悦新青年.otf",
max_words=150,
scale=10,# 清晰度
max_font_size=100,
mask=img_array,
collocations=False).generate(newtxt)
plt.imshow(wordcloud)
plt.axis('off')
plt.show()
wordcloud.to_file('wc.png')轮廓图：wc.jpg
在这里插入图片形容
词云图：result.png（注：这里要把英文字母过滤掉）
2. 制作最近评论数条形图 DrawBar.py
# encoding: utf-8
import csv
import pyecharts.options as opts
from pyecharts.charts import Bar
from pyecharts.globals import ThemeType
class DrawBar(object):
"""绘制柱形图类"""
def __init__(self):
"""创立柱状图实例，并设置宽高和格调"""
self.bar = Bar(init_opts=opts.InitOpts(width='1500px', height='700px', theme=ThemeType.LIGHT))
def add_x(self):
"""为图形增加 X 轴数据"""
with open('time1.csv') as csvfile:
reader = csv.reader(csvfile)
x = [str(row[0]) for row in reader]
print(x)
self.bar.add_xaxis(xaxis_data=x,)
def add_y(self):
with open('time1.csv') as csvfile:
reader = csv.reader(csvfile)
y1 = [float(row[1]) for row in reader]
print(y1)
"""为图形增加 Y 轴数据，可增加多条"""
self.bar.add_yaxis( # 第一个 Y 轴数据
series_name="评论数", # Y 轴数据名称
y_axis=y1, # Y 轴数据
label_opts=opts.LabelOpts(is_show=True,color="black"), # 设置标签
bar_max_width='100px', # 设置柱子最大宽度
)
def set_global(self):
"""设置图形的全局属性"""
#self.bar(width=2000,height=1000)
self.bar.set_global_opts(
title_opts=opts.TitleOpts( # 设置题目
title='雪中悍刀行近日评论统计',title_textstyle_opts=opts.TextStyleOpts(font_size=35)
),
tooltip_opts=opts.TooltipOpts( # 提示框配置项（鼠标移到图形上时显示的货色）is_show=True, # 是否显示提示框
trigger="axis", # 触发类型（axis 坐标轴触发，鼠标移到时会有一条垂直于 X 轴的实线追随鼠标挪动，并显示提示信息）axis_pointer_type="cross"# 指示器类型（cross 将会生成两条别离垂直于 X 轴和 Y 轴的虚线，不启用 trigger 才会显示齐全）),
toolbox_opts=opts.ToolboxOpts(), # 工具箱配置项(什么都不填默认开启所有工具)
)
def draw(self):
"""绘制图形"""
self.add_x()
self.add_y()
self.set_global()
self.bar.render('../Html/DrawBar.html') # 将图绘制到 test.html 文件内，可在浏览器关上
def run(self):
"""执行函数"""
self.draw()
if __name__ == '__main__':
app = DrawBar()
app.run()效果图：DrawBar.html
3. 制作每小时评论条形图 DrawBar2.py
# encoding: utf-8
# encoding: utf-8
import csv
import pyecharts.options as opts
from pyecharts.charts import Bar
from pyecharts.globals import ThemeType
class DrawBar(object):
"""绘制柱形图类"""
def __init__(self):
"""创立柱状图实例，并设置宽高和格调"""
self.bar = Bar(init_opts=opts.InitOpts(width='1500px', height='700px', theme=ThemeType.MACARONS))
def add_x(self):
"""为图形增加 X 轴数据"""
str_name1 = '点'
with open('time2.csv') as csvfile:
reader = csv.reader(csvfile)
x = [str(row[0] + str_name1) for row in reader]
print(x)
self.bar.add_xaxis(xaxis_data=x)
def add_y(self):
with open('time2.csv') as csvfile:
reader = csv.reader(csvfile)
y1 = [int(row[1]) for row in reader]
print(y1)
"""为图形增加 Y 轴数据，可增加多条"""
self.bar.add_yaxis( # 第一个 Y 轴数据
series_name="评论数", # Y 轴数据名称
y_axis=y1, # Y 轴数据
label_opts=opts.LabelOpts(is_show=False), # 设置标签
bar_max_width='50px', # 设置柱子最大宽度
)
def set_global(self):
"""设置图形的全局属性"""
#self.bar(width=2000,height=1000)
self.bar.set_global_opts(
title_opts=opts.TitleOpts( # 设置题目
title='雪中悍刀行各时间段评论统计',title_textstyle_opts=opts.TextStyleOpts(font_size=35)
),
tooltip_opts=opts.TooltipOpts( # 提示框配置项（鼠标移到图形上时显示的货色）is_show=True, # 是否显示提示框
trigger="axis", # 触发类型（axis 坐标轴触发，鼠标移到时会有一条垂直于 X 轴的实线追随鼠标挪动，并显示提示信息）axis_pointer_type="cross"# 指示器类型（cross 将会生成两条别离垂直于 X 轴和 Y 轴的虚线，不启用 trigger 才会显示齐全）),
toolbox_opts=opts.ToolboxOpts(), # 工具箱配置项(什么都不填默认开启所有工具)
)
def draw(self):
"""绘制图形"""
self.add_x()
self.add_y()
self.set_global()
self.bar.render('../Html/DrawBar2.html') # 将图绘制到 test.html 文件内，可在浏览器关上
def run(self):
"""执行函数"""
self.draw()
if __name__ == '__main__':
app = DrawBar()
app.run()效果图：DrawBar2.html
4. 制作近日评论数饼图 pie_pyecharts.py
import csv
from pyecharts import options as opts
from pyecharts.charts import Pie
from random import randint
from pyecharts.globals import ThemeType
with open('time1.csv') as csvfile:
reader = csv.reader(csvfile)
x = [str(row[0]) for row in reader]
print(x)
with open('time1.csv') as csvfile:
reader = csv.reader(csvfile)
y1 = [float(row[1]) for row in reader]
print(y1)
num = y1
lab = x
(Pie(init_opts=opts.InitOpts(width='1700px',height='450px',theme=ThemeType.LIGHT))# 默认 900，600
.set_global_opts(
title_opts=opts.TitleOpts(title="雪中悍刀行近日评论统计",
title_textstyle_opts=opts.TextStyleOpts(font_size=27)),legend_opts=opts.LegendOpts(pos_top="10%", pos_left="1%",# 图例地位调整),)
.add(series_name='',center=[280, 270], data_pair=[(j, i) for i, j in zip(num, lab)])# 饼图
.add(series_name='',center=[845, 270],data_pair=[(j,i) for i,j in zip(num,lab)],radius=['40%','75%'])# 环图
.add(series_name='', center=[1380, 270],data_pair=[(j, i) for i, j in zip(num, lab)], rosetype='radius')# 南丁格尔图
).render('pie_pyecharts.html')效果图
5. 制作每小时评论饼图 pie_pyecharts2.py
import csv
from pyecharts import options as opts
from pyecharts.charts import Pie
from random import randint
from pyecharts.globals import ThemeType
str_name1 = '点'
with open('time2.csv') as csvfile:
reader = csv.reader(csvfile)
x = [str(row[0]+str_name1) for row in reader]
print(x)
with open('time2.csv') as csvfile:
reader = csv.reader(csvfile)
y1 = [int(row[1]) for row in reader]
print(y1)
num = y1
lab = x
(Pie(init_opts=opts.InitOpts(width='1650px',height='500px',theme=ThemeType.LIGHT,))# 默认 900，600
.set_global_opts(
title_opts=opts.TitleOpts(title="雪中悍刀行每小时评论统计"
,title_textstyle_opts=opts.TextStyleOpts(font_size=27)),
legend_opts=opts.LegendOpts(pos_top="8%", pos_left="4%",# 图例地位调整),
)
.add(series_name='',center=[250, 300], data_pair=[(j, i) for i, j in zip(num, lab)])# 饼图
.add(series_name='',center=[810, 300],data_pair=[(j,i) for i,j in zip(num,lab)],radius=['40%','75%'])# 环图
.add(series_name='', center=[1350, 300],data_pair=[(j, i) for i, j in zip(num, lab)], rosetype='radius')# 南丁格尔图
).render('pie_pyecharts2.html')效果图
6. 制作观看工夫区间评论统计饼图 pie_pyecharts3.py
# coding=gbk
import csv
from pyecharts import options as opts
from pyecharts.globals import ThemeType
from sympy.combinatorics import Subset
from wordcloud import WordCloud
from pyecharts.charts import Pie
from random import randintwith open(/data.csv') as csvfile:
reader = csv.reader(csvfile)
data2 = [int(row[1].strip('')[0:2]) for row in reader]
#print(data2)
print(type(data2))
#先变成汇合失去 seq 中的所有元素，防止反复遍历
set_seq = set(data2)
list = []
for item in set_seq:
list.append((item,data2.count(item))) #增加元素及呈现个数
list.sort()
print(type(list))
#print(list)
with open("time2.csv", "w+", newline='', encoding='utf-8') as f:
writer = csv.writer(f, delimiter=',')
for i in list: # 对于每一行的，将这一行的每个元素别离写在对应的列中
writer.writerow(i)
n = 4# 分成 n 组
m = int(len(list)/n)
list2 = []
for i in range(0, len(list), m):
list2.append(list[i:i+m])
print("凌晨 :",list2[0])
print("上午 :",list2[1])
print("下午 :",list2[2])
print("早晨 :",list2[3])
with open('time2.csv') as csvfile:
reader = csv.reader(csvfile)
y1 = [int(row[1]) for row in reader]
print(y1)
n =6
groups = [y1[i:i + n] for i in range(0, len(y1), n)]
print(groups)
x=['凌晨','上午','下午','早晨']
y1=[]
for y1 in groups:
num_sum = 0
for groups in y1:
num_sum += groups
str_name1 = '点'
num = y1
lab = x
(Pie(init_opts=opts.InitOpts(width='1500px',height='450px',theme=ThemeType.LIGHT))# 默认 900，600
.set_global_opts(
title_opts=opts.TitleOpts(title="雪中悍刀行观看工夫区间评论统计"
, title_textstyle_opts=opts.TextStyleOpts(font_size=30)),
legend_opts=opts.LegendOpts(pos_top="8%", # 图例地位调整),
)
.add(series_name='',center=[260, 270], data_pair=[(j, i) for i, j in zip(num, lab)])# 饼图
.add(series_name='',center=[1230, 270],data_pair=[(j,i) for i,j in zip(num,lab)],radius=['40%','75%'])# 环图
.add(series_name='', center=[750, 270],data_pair=[(j, i) for i, j in zip(num, lab)], rosetype='radius')# 南丁格尔图
).render('pie_pyecharts3.html')效果图
7. 制作雪中悍刀行主演提及占比饼图 pie_pyecharts4.py
import csv
from pyecharts import options as opts
from pyecharts.charts import Pie
from random import randint
from pyecharts.globals import ThemeType
f = open('content.txt', 'r', encoding='utf-8') # 这是数据源，也就是想生成词云的数据
words = f.read() # 读取文件
f.close() # 敞开文件，其实用 with 就好，然而懒得改了
name=["张若昀","李庚希","胡军"]
print(name)
count=[float(words.count("张若昀")),
float(words.count("李庚希")),
float(words.count("胡军"))]
print(count)
num = count
lab = name
(Pie(init_opts=opts.InitOpts(width='1650px',height='450px',theme=ThemeType.LIGHT))# 默认 900，600
.set_global_opts(
title_opts=opts.TitleOpts(title="雪中悍刀行主演提及占比",
title_textstyle_opts=opts.TextStyleOpts(font_size=27)),legend_opts=opts.LegendOpts(pos_top="3%", pos_left="33%",# 图例地位调整),)
.add(series_name='',center=[280, 270], data_pair=[(j, i) for i, j in zip(num, lab)])# 饼图
.add(series_name='',center=[800, 270],data_pair=[(j,i) for i,j in zip(num,lab)],radius=['40%','75%'])# 环图
.add(series_name='', center=[1300, 270],data_pair=[(j, i) for i, j in zip(num, lab)], rosetype='radius')# 南丁格尔图
).render('pie_pyecharts4.html')效果图
8. 评论内容情感剖析 SnowNLP.py
import numpy as np
from snownlp import SnowNLP
import matplotlib.pyplot as plt
f = open('content.txt', 'r', encoding='UTF-8')
list = f.readlines()
sentimentslist = []
for i in list:
s = SnowNLP(i)
print(s.sentiments)
sentimentslist.append(s.sentiments)
plt.hist(sentimentslist, bins=np.arange(0, 1, 0.01), facecolor='g')
plt.xlabel('Sentiments Probability')
plt.ylabel('Quantity')
plt.title('Analysis of Sentiments')
plt.show()效果图（情感各分数段呈现频率）
SnowNLP 情感剖析是基于情感词典实现的，其简略的将文本分为两类，踊跃和消极，返回值为情绪的概率，也就是情感评分在 [0,1] 之间，越靠近 1，情感体现越踊跃，越靠近 0，情感体现越消极。
正文完