Python 循环浏览文件

我在名为1.htm-100.htm的文件夹中有100个文件。 我运行此代码从一个文件中提取一些信息，并将提取的信息放在另一个文件final.txt中。目前，我必须手动运行100个文件的程序。我需要构造一个循环，可以运行程序100次，读取每个文件一次。（请详细解释我需要在代码中进行的精确编辑）

以下是文件6.htm的代码：

import glob
import BeautifulSoup
from BeautifulSoup import BeautifulSoup


fo = open("6.htm", "r")
bo = open("output.txt" ,"w")
f = open("final.txt","a+")

htmltext = fo.read()
soup = BeautifulSoup(htmltext)
#print len(urls)
table = soup.findAll('table')
rows = table[0].findAll('tr');
for tr in rows:
    cols = tr.findAll('td')
    for td in cols:
        text = str(td.find(text=True)) + ';;;'
        if(text!=" ;;;"):
            bo.write(text);
            bo.write('\n');
fo.close()
bo.close()

b= open("output.txt", "r")

for j in range (1,5):
str=b.readline();
for j in range(1, 15):
str=b.readline();
c=str.split(";;;")
#print c[1]
if(c[0]=="APD ID:"):
    f.write(c[1])
    f.write("#")
if(c[0]=="Name/Class:"):
    f.write(c[1])
    f.write("#")
if(c[0]=="Source:"):
    f.write(c[1])
    f.write("#")
if(c[0]=="Sequence:"):
    f.write(c[1])
    f.write("#")
if(c[0]=="Length:"):
    f.write(c[1])
    f.write("#")
if(c[0]=="Net charge:"):
    f.write(c[1])
    f.write("#")
if(c[0]=="Hydrophobic residue%:"):
    f.write(c[1])
    f.write("#")
if(c[0]=="Boman Index:"):
    f.write(c[1])
    f.write("#")
f.write('\n');
b.close();
f.close();



f.close();
print "End"

然后，剩下的代码就到了那里。

也考虑（最佳实践） 因此，不要忘记关闭这些文件句柄，因为操作系统中允许打开的文件句柄数量有限，这将确保不会错误地填充

使您的代码看起来像这样：

import os
with open("final.txt","a+") as f:
    for root, folders, files in os.walk('./path/to/html_files/'):
        for fileName in files:
            with open(os.path.abspath(root + '/' + fileName, "r") as fo:
                ...

# declare main files
bo = open("output.txt" ,"w")
f = open("final.txt","a+")

#loop over range ii = [1,100]
for ii in range(1,101):
    fo = open(str(ii) + ".htm", "r")
    # Run program like normal
    ...
    ...
    ...
    fo.close()
f.close()
bo.close()

import os

# Creates a list of 1-100.htm file names
filenames = map(lambda x: str(x) + ".htm", range(1,101))

for file in os.listdir("/mydir"):
    if (file in filenames):
        # Do your logic here.

另外，从不替换全局变量名，如

str

：

str=b.readline();

也不需要

在代码行的末尾，这是Python。。我们以舒适的方式编码

最后但并非最不重要

if(c[0]=="APD ID:"):
if(c[0]=="Name/Class:"):
if(c[0]=="Source:"):
if(c[0]=="Sequence:"):
if(c[0]=="Length:"):
if(c[0]=="Net charge:"):
if(c[0]=="Hydrophobic residue%:"):
if(c[0]=="Boman Index:"):

应该是：

if(c[0]=="APD ID:"):
elif(c[0]=="Name/Class:"):
elif(c[0]=="Source:"):
elif(c[0]=="Sequence:"):
elif(c[0]=="Length:"):
elif(c[0]=="Net charge:"):
elif(c[0]=="Hydrophobic residue%:"):
elif(c[0]=="Boman Index:"):

除非您在修改过程中修改了
c
，当然，您不需要这样做。。所以，切换

妈的，我只是一直在寻找关于这段代码的更可怕的东西（很明显，你已经从所有星系的示例中粘贴了副本…）：

您可以将上述所有
if
/
elif
/
else
压缩为一个if块：

if(c[0] in ("APD ID:", "Name/Class:", "Source:", "Sequence:", "Length:", "Net charge:", "Hydrophobic residue%:", "Boman Index:")):
    f.write(c[1])
    f.write("#")

另外，再次跳过if块周围的
（
…
）
。。这是Python。。我们以舒适的方式进行编程：

if c[0] in ("APD ID:", "Name/Class:", "Source:", "Sequence:", "Length:", "Net charge:", "Hydrophobic residue%:", "Boman Index:"):
    f.write(c[1])
    f.write("#")

然后，剩下的代码就到了那里。



也考虑（最佳实践）
因此，不要忘记关闭这些文件句柄，因为操作系统中允许打开的文件句柄数量有限，这将确保不会错误地填充

使您的代码看起来像这样：

import os
with open("final.txt","a+") as f:
    for root, folders, files in os.walk('./path/to/html_files/'):
        for fileName in files:
            with open(os.path.abspath(root + '/' + fileName, "r") as fo:
                ...

# declare main files
bo = open("output.txt" ,"w")
f = open("final.txt","a+")

#loop over range ii = [1,100]
for ii in range(1,101):
    fo = open(str(ii) + ".htm", "r")
    # Run program like normal
    ...
    ...
    ...
    fo.close()
f.close()
bo.close()

import os

# Creates a list of 1-100.htm file names
filenames = map(lambda x: str(x) + ".htm", range(1,101))

for file in os.listdir("/mydir"):
    if (file in filenames):
        # Do your logic here.

另外，从不替换全局变量名，如
str
：

str=b.readline();

也不需要
在代码行的末尾，这是Python。。我们以舒适的方式编码

最后但并非最不重要

if(c[0]=="APD ID:"):
if(c[0]=="Name/Class:"):
if(c[0]=="Source:"):
if(c[0]=="Sequence:"):
if(c[0]=="Length:"):
if(c[0]=="Net charge:"):
if(c[0]=="Hydrophobic residue%:"):
if(c[0]=="Boman Index:"):

应该是：

if(c[0]=="APD ID:"):
elif(c[0]=="Name/Class:"):
elif(c[0]=="Source:"):
elif(c[0]=="Sequence:"):
elif(c[0]=="Length:"):
elif(c[0]=="Net charge:"):
elif(c[0]=="Hydrophobic residue%:"):
elif(c[0]=="Boman Index:"):

除非您在修改过程中修改了
c
，当然，您不需要这样做。。所以，切换

妈的，我只是一直在寻找关于这段代码的更可怕的东西（很明显，你已经从所有星系的示例中粘贴了副本…）：

您可以将上述所有
if
/
elif
/
else
压缩为一个if块：

if(c[0] in ("APD ID:", "Name/Class:", "Source:", "Sequence:", "Length:", "Net charge:", "Hydrophobic residue%:", "Boman Index:")):
    f.write(c[1])
    f.write("#")

另外，再次跳过if块周围的
（
…
）
。。这是Python。。我们以舒适的方式进行编程：

if c[0] in ("APD ID:", "Name/Class:", "Source:", "Sequence:", "Length:", "Net charge:", "Hydrophobic residue%:", "Boman Index:"):
    f.write(c[1])
    f.write("#")

然后，剩下的代码就到了那里。



也考虑（最佳实践）
因此，不要忘记关闭这些文件句柄，因为操作系统中允许打开的文件句柄数量有限，这将确保不会错误地填充

使您的代码看起来像这样：

import os
with open("final.txt","a+") as f:
    for root, folders, files in os.walk('./path/to/html_files/'):
        for fileName in files:
            with open(os.path.abspath(root + '/' + fileName, "r") as fo:
                ...

# declare main files
bo = open("output.txt" ,"w")
f = open("final.txt","a+")

#loop over range ii = [1,100]
for ii in range(1,101):
    fo = open(str(ii) + ".htm", "r")
    # Run program like normal
    ...
    ...
    ...
    fo.close()
f.close()
bo.close()

import os

# Creates a list of 1-100.htm file names
filenames = map(lambda x: str(x) + ".htm", range(1,101))

for file in os.listdir("/mydir"):
    if (file in filenames):
        # Do your logic here.

另外，从不替换全局变量名，如
str
：

str=b.readline();

也不需要
在代码行的末尾，这是Python。。我们以舒适的方式编码

最后但并非最不重要

if(c[0]=="APD ID:"):
if(c[0]=="Name/Class:"):
if(c[0]=="Source:"):
if(c[0]=="Sequence:"):
if(c[0]=="Length:"):
if(c[0]=="Net charge:"):
if(c[0]=="Hydrophobic residue%:"):
if(c[0]=="Boman Index:"):

应该是：

if(c[0]=="APD ID:"):
elif(c[0]=="Name/Class:"):
elif(c[0]=="Source:"):
elif(c[0]=="Sequence:"):
elif(c[0]=="Length:"):
elif(c[0]=="Net charge:"):
elif(c[0]=="Hydrophobic residue%:"):
elif(c[0]=="Boman Index:"):

除非您在修改过程中修改了
c
，当然，您不需要这样做。。所以，切换

妈的，我只是一直在寻找关于这段代码的更可怕的东西（很明显，你已经从所有星系的示例中粘贴了副本…）：

您可以将上述所有
if
/
elif
/
else
压缩为一个if块：

if(c[0] in ("APD ID:", "Name/Class:", "Source:", "Sequence:", "Length:", "Net charge:", "Hydrophobic residue%:", "Boman Index:")):
    f.write(c[1])
    f.write("#")

另外，再次跳过if块周围的
（
…
）
。。这是Python。。我们以舒适的方式进行编程：

if c[0] in ("APD ID:", "Name/Class:", "Source:", "Sequence:", "Length:", "Net charge:", "Hydrophobic residue%:", "Boman Index:"):
    f.write(c[1])
    f.write("#")

然后，剩下的代码就到了那里。



也考虑（最佳实践）
因此，不要忘记关闭这些文件句柄，因为操作系统中允许打开的文件句柄数量有限，这将确保不会错误地填充

使您的代码看起来像这样：

import os
with open("final.txt","a+") as f:
    for root, folders, files in os.walk('./path/to/html_files/'):
        for fileName in files:
            with open(os.path.abspath(root + '/' + fileName, "r") as fo:
                ...

# declare main files
bo = open("output.txt" ,"w")
f = open("final.txt","a+")

#loop over range ii = [1,100]
for ii in range(1,101):
    fo = open(str(ii) + ".htm", "r")
    # Run program like normal
    ...
    ...
    ...
    fo.close()
f.close()
bo.close()

import os

# Creates a list of 1-100.htm file names
filenames = map(lambda x: str(x) + ".htm", range(1,101))

for file in os.listdir("/mydir"):
    if (file in filenames):
        # Do your logic here.

另外，从不替换全局变量名，如
str
：

str=b.readline();

也不需要
在代码行的末尾，这是Python。。我们以舒适的方式编码

最后但并非最不重要

if(c[0]=="APD ID:"):
if(c[0]=="Name/Class:"):
if(c[0]=="Source:"):
if(c[0]=="Sequence:"):
if(c[0]=="Length:"):
if(c[0]=="Net charge:"):
if(c[0]=="Hydrophobic residue%:"):
if(c[0]=="Boman Index:"):

应该是：

if(c[0]=="APD ID:"):
elif(c[0]=="Name/Class:"):
elif(c[0]=="Source:"):
elif(c[0]=="Sequence:"):
elif(c[0]=="Length:"):
elif(c[0]=="Net charge:"):
elif(c[0]=="Hydrophobic residue%:"):
elif(c[0]=="Boman Index:"):

除非您在修改过程中修改了
c
，当然，您不需要这样做。。所以，切换

妈的，我只是一直在寻找关于这段代码的更可怕的东西（很明显，你已经从所有星系的示例中粘贴了副本…）：

您可以将上述所有
if
/
elif
/
else
压缩为一个if块：

if(c[0] in ("APD ID:", "Name/Class:", "Source:", "Sequence:", "Length:", "Net charge:", "Hydrophobic residue%:", "Boman Index:")):
    f.write(c[1])
    f.write("#")

另外，再次跳过if块周围的
（
…
）
。。这是Python。。我们以舒适的方式进行编程：

if c[0] in ("APD ID:", "Name/Class:", "Source:", "Sequence:", "Length:", "Net charge:", "Hydrophobic residue%:", "Boman Index:"):
    f.write(c[1])
    f.write("#")

可能是这样的结构：

import os
with open("final.txt","a+") as f:
    for root, folders, files in os.walk('./path/to/html_files/'):
        for fileName in files:
            with open(os.path.abspath(root + '/' + fileName, "r") as fo:
                ...

# declare main files
bo = open("output.txt" ,"w")
f = open("final.txt","a+")

#loop over range ii = [1,100]
for ii in range(1,101):
    fo = open(str(ii) + ".htm", "r")
    # Run program like normal
    ...
    ...
    ...
    fo.close()
f.close()
bo.close()

import os

# Creates a list of 1-100.htm file names
filenames = map(lambda x: str(x) + ".htm", range(1,101))

for file in os.listdir("/mydir"):
    if (file in filenames):
        # Do your logic here.

可能是这样的结构：

import os
with open("final.txt","a+") as f:
    for root, folders, files in os.walk('./path/to/html_files/'):
        for fileName in files:
            with open(os.path.abspath(root + '/' + fileName, "r") as fo:
                ...

# declare main files
bo = open("output.txt" ,"w")
f = open("final.txt","a+")

#loop over range ii = [1,100]
for ii in range(1,101):
    fo = open(str(ii) + ".htm", "r")
    # Run program like normal
    ...
    ...
    ...
    fo.close()
f.close()
bo.close()

import os

# Creates a list of 1-100.htm file names
filenames = map(lambda x: str(x) + ".htm", range(1,101))

for file in os.listdir("/mydir"):
    if (file in filenames):
        # Do your logic here.

可能是这样的结构：

import os
with open("final.txt","a+") as f:
    for root, folders, files in os.walk('./path/to/html_files/'):
        for fileName in files:
            with open(os.path.abspath(root + '/' + fileName, "r") as fo:
                ...

# declare main files
bo = open("output.txt" ,"w")
f = open("final.txt","a+")

#loop over range ii = [1,100]
for ii in range(1,101):
    fo = open(str(ii) + ".htm", "r")
    # Run program like normal
    ...
    ...
    ...
    fo.close()
f.close()
bo.close()

import os

# Creates a list of 1-100.htm file names
filenames = map(lambda x: str(x) + ".htm", range(1,101))

for file in os.listdir("/mydir"):
    if (file in filenames):
        # Do your logic here.

可能是这样的结构：

import os
with open("final.txt","a+") as f:
    for root, folders, files in os.walk('./path/to/html_files/'):
        for fileName in files:
            with open(os.path.abspath(root + '/' + fileName, "r") as fo:
                ...

# declare main files
bo = open("output.txt" ,"w")
f = open("final.txt","a+")

#loop over range ii = [1,100]
for ii in range(1,101):
    fo = open(str(ii) + ".htm", "r")
    # Run program like normal
    ...
    ...
    ...
    fo.close()
f.close()
bo.close()

import os

# Creates a list of 1-100.htm file names
filenames = map(lambda x: str(x) + ".htm", range(1,101))

for file in os.listdir("/mydir"):
    if (file in filenames):
        # Do your logic here.

列出特定目录中的所有文件

正如@Torxed所指出的，最佳实践是使用with子句（以便关闭文件句柄）

您可以在中查找.htm文件，如下所示：

import os
with open("final.txt","a+") as f:
    for root, folders, files in os.walk('./path/to/html_files/'):
        for fileName in files:
            with open(os.path.abspath(root + '/' + fileName, "r") as fo:
                ...

# declare main files
bo = open("output.txt" ,"w")
f = open("final.txt","a+")

#loop over range ii = [1,100]
for ii in range(1,101):
    fo = open(str(ii) + ".htm", "r")
    # Run program like normal
    ...
    ...
    ...
    fo.close()
f.close()
bo.close()

import os

# Creates a list of 1-100.htm file names
filenames = map(lambda x: str(x) + ".htm", range(1,101))

for file in os.listdir("/mydir"):
    if (file in filenames):
        # Do your logic here.

列出特定目录中的所有文件

正如@Torxed所指出的，最佳实践是使用with子句（以便关闭文件句柄）

您可以在中查找.htm文件，如下所示：

import os
with open("final.txt","a+") as f:
    for root, folders, files in os.walk('./path/to/html_files/'):
        for fileName in files:
            with open(os.path.abspath(root + '/' + fileName, "r") as fo:
                ...

# declare main files
bo = open("output.txt" ,"w")
f = open("final.txt","a+")

#loop over range ii = [1,100]
for ii in range(1,101):
    fo = open(str(ii) + ".htm", "r")
    # Run program like normal
    ...
    ...
    ...
    fo.close()
f.close()
bo.close()

import os

# Creates a list of 1-100.htm file names
filenames = map(lambda x: str(x) + ".htm", range(1,101))

for file in os.listdir("/mydir"):
    if (file in filenames):
        # Do your logic here.

列出特定目录中的所有文件

正如@Torxed所指出的，最佳实践是使用with子句（以便关闭文件句柄）

您可以在中查找.htm文件，如下所示：

import os
with open("final.txt","a+") as f:
    for root, folders, files in os.walk('./path/to/html_files/'):
        for fileName in files:
            with open(os.path.abspath(root + '/' + fileName, "r") as fo:
                ...

# declare main files
bo = open("output.txt" ,"w")
f = open("final.txt","a+")

#loop over range ii = [1,100]
for ii in range(1,101):
    fo = open(str(ii) + ".htm", "r")
    # Run program like normal
    ...
    ...
    ...
    fo.close()
f.close()
bo.close()

import os

# Creates a list of 1-100.htm file names
filenames = map(lambda x: str(x) + ".htm", range(1,101))

for file in os.listdir("/mydir"):
    if (file in filenames):
        # Do your logic here.

列出特定目录中的所有文件

正如@Torxed所指出的，最佳实践是使用with子句（以便关闭文件句柄）

您可以在中查找.htm文件，如下所示：

import os
with open("final.txt","a+") as f:
    for root, folders, files in os.walk('./path/to/html_files/'):
        for fileName in files:
            with open(os.path.abspath(root + '/' + fileName, "r") as fo:
                ...

# declare main files
bo = open("output.txt" ,"w")
f = open("final.txt","a+")

#loop over range ii = [1,100]
for ii in range(1,101):
    fo = open(str(ii) + ".htm", "r")
    # Run program like normal
    ...
    ...
    ...
    fo.close()
f.close()
bo.close()

import os

# Creates a list of 1-100.htm file names
filenames = map(lambda x: str(x) + ".htm", range(1,101))

for file in os.listdir("/mydir"):
    if (file in filenames):
        # Do your logic here.

这就是为什么。而且，对于范围（1,5）中的j，
：
从未使用过吗？或者至少你没有在任何地方使用
j
，而且标签缩进完全是w