终端中 main() 的缩进错误。 (蟒蛇3)

Question

我刚开始使用 Python3 中的 main() 部分。如果您能提供任何帮助，我将不胜感激。

抛出的错误：

python3 Artificial_snake_anti_venom.py
  File "Artificial_snake_anti_venom.py", line 67
    def main(): snake_families = get_all_snake_families() all_antivenoms = create_all_antivenoms(snake_families) save_antivenoms_file(all_antivenoms.txt) show_user_message() if __name__ == "__main__":
                                                          ^
SyntaxError: invalid syntax

代码：

#!/usr/bin/python

# Creating Synthetic Snake Antivenom 
import random 

# Create a function that can generate antivenom serum from snake venom 
def make_antivenom(snake_venom): 
  # Create a loop that can iterate through the snake venom and be used to create the antivenom 
  antivenom_serum = [] 
  for element in snake_venom: 
    # Create a sample of each element in the snake venom 
    sample = random.sample(element, len(element)) 
    # Append each sample to a serum stored in the list 
    antivenom_serum.append(sample) 
  
  # Return the complete antivenom serum once all samples have been appended 
  return antivenom_serum
  
# Call the function 
antivenom_serum = make_antivenom()

def make_antivenom():
    antivenom_serum = []
    # Append polyvalent antivenom
    polyvalent_serum = create_polyvalent_antivenom()
    antivenom_serum.append(polyvalent_serum)
    
    # Append a range of species specific antivenom
    for snake_species in get_all_snake_species():
        species_specific_serum = create_species_specific_antivenom(snake_species)
        antivenom_serum.append(species_specific_serum)
    
    # Append a range of polyspecific antivenom
    for snake_family in get_all_snake_families():
        polyspecific_serum = create_polyspecific_antivenom(snake_family)
        antivenom_serum.append(polyspecific_serum)
        
    return antivenom_serum
   
# Create a polyvalent antivenom serum
def create_polyvalent_antivenom():
    # code to create polyvalent antivenom

# Create a species specific antivenom serum
    def create_species_specific_antivenom(snake_species):
    # code to create species specific antivenom
 
# Create a polyspecific antivenom serum
        def create_polyspecific_antivenom(snake_family):
    # code to create polyspcecific antivenom
 
# Get a list of all snake species
            def get_all_snake_species():
    # code to get all snake species

# Get a list of all snake families
                def get_all_snake_families():
    # code to get list of all snake families here 
                    pass
    # Create dictionary with all antivenoms for snake species 
                    def create_all_antivenoms(): # code to generate antivenoms based on snake families pass # Loop over created antivenoms and save to file 
                            def save_antivenoms_file(): # loop over antivenom dict and save to file 
                                pass 
    # Display message to user 
                                def show_user_message(): print("All snake antivenoms have been generated!") 
    # Call main function 
                                def main(): snake_families = get_all_snake_families() all_antivenoms = create_all_antivenoms(snake_families) save_antivenoms_file(all_antivenoms.txt) show_user_message() if __name__ == "__main__":
                                main()

谢谢你的时间。 杰。 汤森原子公司。

到目前为止我做了什么。

• 检查了空格。
• 将 main() 移至新行。
• 尝试将 all_antivenoms 更改为带引号和不带引号的所有 antivenoms.txt。

它在正确的目录中；一直是chmod +x。

所有的结果都是一样的。

python3 Artificial_snake_anti_venom.py
  File "Artificial_snake_anti_venom.py", line 67
    def main(): snake_families = get_all_snake_families() all_antivenoms = create_all_antivenoms(snake_families) save_antivenoms_file(all_antivenoms.txt) show_user_message() if __name__ == "__main__":
                                                          ^
SyntaxError: invalid syntax

Answer 1

您是否打算逐渐增加缩进？

首先尝试将所有 def 语句都左对齐。