运行一个 Python 程序 returns: bash: 意外标记 '(' 附近的语法错误

Question

这是我在 RaspberryPi 上运行设置的 DSLR 定时器的代码。问题是每当我运行文件时 returns 错误：

bash: syntax error near unexpected token `('

我假设错误一定与括号后面的字符之一有关，但我已经搜索了大约一个小时，但找不到任何内容。脚本的下半部分是我从头开始做的，因为我对 python 没有太多经验，那里也可能有一个（或多个）错误。非常感谢任何帮助。

部分代码摘自此视频：https://www.youtube.com/watch?v=1eAYxnSU2aw

#Imports various modules.
from time import sleep
from datetime import datetime
from sh import gphoto2 as gp
import signal, os, subprocess
import threading


#######################################################################


#Closes the gphoto2 popup.
def killGphoto2Process():
    p = subprocess.Popen(['ps', '-A'], stdout=subprocess.PIPE)
    out, err = p.communicate()

    for line in out.splitlines():
        if b'gvfsd-gphoto2' in line:
            pid = int(line.split(None,1)[0])
            os.kill(pid, signal.SIGKILL)

#Creates values for when the pictures were taken. 
shot_date = datetime.now().strftime("%Y-%m-%d")
shot_time = datetime.now().strftime("%Y-%m-%d %H:%M:%S")

#Names the pictures "Sunrises".
picID = "Sunrises"

#Creates commands to take and download pictures then stores them in the
#variables "triggerCommand" and "downloadCommand".
captureCommand = ["--capture-image"]
downloadCommand = ["--get-all-files"]


#Creates a folder to store captured pictures and gives it a location.
folder_name = shot_date + picID
save_location = "/home/pi/Desktop/gphoto/" + folder_name

#Creates or changes where the pictures are saved.
def createSaveFolder():
    try:
        os.makedirs(save_location)
    except:
        print("Failed to create the new directory.")
    os.chdir(save_location)

#Captures and downloads the pictures.
def captureImages():
    gp(captureCommand)
    gp(downloadCommand)

#Renames the captured images.
def renameFiles(ID):
    for filename in os.listdir("."):
        if len(filename) < 13:
            if filename.endswith(".JPG"):
                os.rename(filename, (shot_time + ID + ".JPG"))


#######################################################################


#Creates a loop that runs every 30 seconds.
def printit():
    threading.Timer(30, printit).start()

    #Imports the "time" module to get the time.
    import time

    #Creates variables for hour and minute.
    hour = int(time.strftime("%H"))
    minutePart1 = int(time.strftime("%M"))
    colon = ":"

    #Puts a "0" in front of "minute" if "minute" is less than 10.
    #This prevents: time(7:9) not equaling sunrise(7:09).
    if minutePart1 < 10:
        minute = ("0" + str(minutePart1))
    else:
        minute = (minutePart1)

    #Converts the time from 24-Hour to 12-Hour.
    if int(hour) > 12:
       hour = hour - 12

    #Creates variables "time" and "sunrise".
    time = (str(hour) + colon + str(minute))
    sunrise = "7:09"

    #Takes a picture if the time is 7:09 AM.
    if time == sunrise :
        killGphoto2Process()
        createSaveFolder()
        captureImages()
        #renameFiles(picID)
        print("Sunrise!")

        print("Currently running \"Camera Controller.py\" ")

    printit()

Answer 1

从imgur图片来看，问题是：

而不是：

python3 Camera Controller for Raspberry Pi (Part 4) .py

使用：

python3 'Camera Controller for Raspberry Pi (Part 4) .py'

没有引号，shell 认为 Camera、Controller、for、Raspberry， Pi、(、Part、4、) 和 .py 全部分开。因为 ( 是 shell 元字符 在非法位置，所以 shell 无法解析此命令行。

使用引号，整个文件名被视为一个参数并传递给 python 毫发无损。

进行此更改后，python 代码很可能会出现其他问题。正如 kdheepak 指出的那样，导入语句可能存在问题。例如，代码从模块 sh 导入，但我的 python 安装不包含该名称的任何模块。

运行一个 Python 程序 returns: bash: 意外标记 '(' 附近的语法错误

Running a Python program returns: bash: syntax error near unexpected token '('

bash

terminal

python-3.x

raspberry-pi

raspbian

运行 一个 Python 程序 returns: bash: 意外标记 '(' 附近的语法错误

Running a Python program returns: bash: syntax error near unexpected token '('

bash

terminal

python-3.x

raspberry-pi

raspbian

运行一个 Python 程序 returns: bash: 意外标记 '(' 附近的语法错误