[英]Stripping empty lines from the print statement in python2.7
I wanted to print the lines from two text file alternatively. 我想交替打印两个文本文件中的行。 So I wrote the code to read a line from one text file as below
因此,我编写了如下代码来从一个文本文件中读取一行
for readfile_number in range(0,file):
readfile_number = readfile_number + 1
with open ("navigated_pages.txt","r") as navigated_pages:
line = navigated_pages.readlines()
current_line = str((line[readfile_number - 1]).strip())
Then open the other text file, and print the data alternatively but the print statement produces empty lines which I don't require. 然后打开另一个文本文件,并交替打印数据,但是print语句会产生我不需要的空行。
In below statement I check whether the created file before the statement has 1 byte if false then print the line as I don't want to print the line when the corresponding file has no data 在下面的语句中,我检查语句之前创建的文件是否为1字节(如果为false),然后打印该行,因为当相应文件没有数据时,我不想打印该行
(In my case even though the file is empty it has 1 byte of data). (就我而言,即使文件为空,它也有1个字节的数据)。 This the reason for many empty lines which are produced due to not printing when the empty file occurs.
这是由于出现空文件时由于不打印而产生许多空行的原因。
with open("command_from_page_" + str(readfile_number), "r") as commands_executed_file:
empty_file = os.stat("command_from_page_" + str(readfile_number))[6]==1
if str(empty_file) == "False":
print " " + current_line.rstrip("\n")
for line in commands_executed_file:
if line.strip():
line = line.replace('), ', ')\n ')
line = line.replace('o, ', 'o\n ')
print " > Commands : " + "\033[1m\033[32m"
print " " + line + "\033[0m"
Navigated pages has data something like: 导航页面具有如下数据:
X_0_Gui_Homescreen_EI_Switchview
X_0_Gui_Homescreen_EI_Set
X_0_Gui_Homescreen_EI_Switchview
X_0_Gui_Homescreen_Homescreen
X_0_Gui_Menu_000_Menu_root
X_0_Gui_Menu_100_Menu_Recording
X_0_Gui_Menu_110_Menu_Recording_Project
X_0_Gui_Menu_100_Menu_Recording
Command from file has data something like: 来自文件的命令具有如下数据:
StatusInfoSet (0, 30), StatusInfoSet (0, 26)
The print produces: 印刷品产生:
X_0_Gui_Menu_3231_Menu_Outputs_SDI_status
> Commands :
StatusInfoSet (2, 12)
StatusInfoSet (2, 44)
X_0_Gui_Menu_322_Menu_Outputs_SDI_overlays
> Commands :
CenterMark (2, 2)
FrameSet (2, 0)
FrameSet (2, 1)
X_0_Gui_Menu_322_Menu_Outputs_SDI_overlays
> Commands :
FrameSet (2, 0)
CenterMark (2, 1)
StatusInfo (2, 1)
StatusInfo (2, 0)
SurroundMask (2, 2)
X_0_Gui_Menu_100_Menu_Recording
> Commands :
MediaCodec (3)
SetSensorFormat (1)
I would like to how to remove these empty spaces like 我想如何删除这些空白
X_0_Gui_Menu_3231_Menu_Outputs_SDI_status
> Commands :
StatusInfoSet (2, 12)
StatusInfoSet (2, 44)
X_0_Gui_Menu_322_Menu_Outputs_SDI_overlays
> Commands :
CenterMark (2, 2)
FrameSet (2, 0)
FrameSet (2, 1)
X_0_Gui_Menu_322_Menu_Outputs_SDI_overlays
> Commands :
FrameSet (2, 0)
CenterMark (2, 1)
StatusInfo (2, 1)
StatusInfo (2, 0)
SurroundMask (2, 2)
X_0_Gui_Menu_100_Menu_Recording
> Commands :
MediaCodec (3)
SetSensorFormat (1)
Here is a quick example. 这是一个简单的例子。 I have two files named as
file1.txt
and file2.txt
. 我有两个名为
file1.txt
和file2.txt
文件。 The file1.txt
has the following content: file1.txt
具有以下内容:
first line in the file1.
Second line in the file1.
Third line in the file1.
I shall copy the contents from the file1.txt
to file2.txt
and remove the extra lines. 我将内容从
file1.txt
复制到file2.txt
并删除多余的行。
Code : 代码 :
file1 = open('file1.txt', 'r')
file2 = open('file2.txt', 'w')
for lines in file1.readlines():
if lines == '\n':
print 'Empty line'
else:
file2.write(lines+'\n')
file1.close()
file2.close()
The content of the file2.txt
will be as following: file2.txt
的内容如下:
first line in the file1.
Second line in the file1.
Third line in the file1.
This is just a quick and dirty sample. 这只是一个快速而肮脏的示例。 Hope it helps.
希望能帮助到你。
Update : After experimenting a while the following code will produce the syntax you need. 更新 :经过一段时间的尝试,以下代码将生成您所需的语法。 The
file1.txt
contains the following content: file1.txt
包含以下内容:
X_0_Gui_Menu_3231_Menu_Outputs_SDI_status
> Commands :
StatusInfoSet (2, 12)
StatusInfoSet (2, 44)
X_0_Gui_Menu_322_Menu_Outputs_SDI_overlays
> Commands :
CenterMark (2, 2)
FrameSet (2, 0)
FrameSet (2, 1)
X_0_Gui_Menu_322_Menu_Outputs_SDI_overlays
> Commands :
FrameSet (2, 0)
CenterMark (2, 1)
StatusInfo (2, 1)
StatusInfo (2, 0)
SurroundMask (2, 2)
X_0_Gui_Menu_100_Menu_Recording
> Commands :
MediaCodec (3)
SetSensorFormat (1)
then execute this script and see if it matches what you need: 然后执行此脚本,看看它是否符合您的需求:
file1 = open('file1.txt', 'r')
file2 = open('file2.txt', 'w')
count = 0
for lines in file1.readlines():
#print lines
if (lines[-1:] == '\n') and (len(lines) == 1):
if count >= 1:
pass
else:
file2.write(lines)
count += 1
else:
file2.write(lines)
count = 0
file1.close()
file2.close()
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